Help: Make language standard/extensions variable pages less wordy

They all had two sentences describing the same thing. Furthermore, with the
shorter wording the explicit advice to see the property being initialized for
further information seems unnecessary.

Help/variable/CMAKE_CUDA_EXTENSIONS.rst

@@ -3,11 +3,8 @@ CMAKE_CUDA_EXTENSIONS
 
 .. versionadded:: 3.8
 
-Default value for :prop_tgt:`CUDA_EXTENSIONS` property of targets.
-
-This variable is used to initialize the :prop_tgt:`CUDA_EXTENSIONS`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`CUDA_EXTENSIONS` target property if set when a
+target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_CUDA_STANDARD.rst

@@ -3,11 +3,8 @@ CMAKE_CUDA_STANDARD
 
 .. versionadded:: 3.8
 
-Default value for :prop_tgt:`CUDA_STANDARD` property of targets.
-
-This variable is used to initialize the :prop_tgt:`CUDA_STANDARD`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`CUDA_STANDARD` target property if set when a
+target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_CUDA_STANDARD_REQUIRED.rst

@@ -3,11 +3,8 @@ CMAKE_CUDA_STANDARD_REQUIRED
 
 .. versionadded:: 3.8
 
-Default value for :prop_tgt:`CUDA_STANDARD_REQUIRED` property of targets.
-
-This variable is used to initialize the :prop_tgt:`CUDA_STANDARD_REQUIRED`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`CUDA_STANDARD_REQUIRED` target property if set
+when a target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_CXX_EXTENSIONS.rst

@@ -3,11 +3,8 @@ CMAKE_CXX_EXTENSIONS
 
 .. versionadded:: 3.1
 
-Default value for :prop_tgt:`CXX_EXTENSIONS` property of targets.
-
-This variable is used to initialize the :prop_tgt:`CXX_EXTENSIONS`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`CXX_EXTENSIONS` target property if set when a
+target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_CXX_STANDARD.rst

@@ -3,11 +3,8 @@ CMAKE_CXX_STANDARD
 
 .. versionadded:: 3.1
 
-Default value for :prop_tgt:`CXX_STANDARD` property of targets.
-
-This variable is used to initialize the :prop_tgt:`CXX_STANDARD`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`CXX_STANDARD` target property if set when a target
+is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_CXX_STANDARD_REQUIRED.rst

@@ -3,11 +3,8 @@ CMAKE_CXX_STANDARD_REQUIRED
 
 .. versionadded:: 3.1
 
-Default value for :prop_tgt:`CXX_STANDARD_REQUIRED` property of targets.
-
-This variable is used to initialize the :prop_tgt:`CXX_STANDARD_REQUIRED`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`CXX_STANDARD_REQUIRED` target property if set when
+a target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_C_EXTENSIONS.rst

@@ -3,11 +3,8 @@ CMAKE_C_EXTENSIONS
 
 .. versionadded:: 3.1
 
-Default value for :prop_tgt:`C_EXTENSIONS` property of targets.
-
-This variable is used to initialize the :prop_tgt:`C_EXTENSIONS`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`C_EXTENSIONS` target property if set when a target
+is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_C_STANDARD.rst

@@ -3,11 +3,8 @@ CMAKE_C_STANDARD
 
 .. versionadded:: 3.1
 
-Default value for :prop_tgt:`C_STANDARD` property of targets.
-
-This variable is used to initialize the :prop_tgt:`C_STANDARD`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`C_STANDARD` target property if set when a target
+is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_C_STANDARD_REQUIRED.rst

@@ -3,11 +3,8 @@ CMAKE_C_STANDARD_REQUIRED
 
 .. versionadded:: 3.1
 
-Default value for :prop_tgt:`C_STANDARD_REQUIRED` property of targets.
-
-This variable is used to initialize the :prop_tgt:`C_STANDARD_REQUIRED`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`C_STANDARD_REQUIRED` target property if set when
+a target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_OBJCXX_EXTENSIONS.rst

@@ -3,11 +3,8 @@ CMAKE_OBJCXX_EXTENSIONS
 
 .. versionadded:: 3.16
 
-Default value for :prop_tgt:`OBJCXX_EXTENSIONS` property of targets.
-
-This variable is used to initialize the :prop_tgt:`OBJCXX_EXTENSIONS`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`OBJCXX_EXTENSIONS` target property if set when a
+target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_OBJCXX_STANDARD.rst

@@ -3,11 +3,8 @@ CMAKE_OBJCXX_STANDARD
 
 .. versionadded:: 3.16
 
-Default value for :prop_tgt:`OBJCXX_STANDARD` property of targets.
-
-This variable is used to initialize the :prop_tgt:`OBJCXX_STANDARD`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`OBJCXX_STANDARD` target property if set when a
+target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_OBJCXX_STANDARD_REQUIRED.rst

@@ -3,11 +3,8 @@ CMAKE_OBJCXX_STANDARD_REQUIRED
 
 .. versionadded:: 3.16
 
-Default value for :prop_tgt:`OBJCXX_STANDARD_REQUIRED` property of targets.
-
-This variable is used to initialize the :prop_tgt:`OBJCXX_STANDARD_REQUIRED`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`OBJCXX_STANDARD_REQUIRED` target property if set
+when a target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_OBJC_EXTENSIONS.rst

@@ -3,11 +3,8 @@ CMAKE_OBJC_EXTENSIONS
 
 .. versionadded:: 3.16
 
-Default value for :prop_tgt:`OBJC_EXTENSIONS` property of targets.
-
-This variable is used to initialize the :prop_tgt:`OBJC_EXTENSIONS`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`OBJC_EXTENSIONS` target property if set when a
+target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_OBJC_STANDARD.rst

@@ -3,11 +3,8 @@ CMAKE_OBJC_STANDARD
 
 .. versionadded:: 3.16
 
-Default value for :prop_tgt:`OBJC_STANDARD` property of targets.
-
-This variable is used to initialize the :prop_tgt:`OBJC_STANDARD`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`OBJC_STANDARD` target property if set when a
+target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.

Help/variable/CMAKE_OBJC_STANDARD_REQUIRED.rst

@@ -3,11 +3,8 @@ CMAKE_OBJC_STANDARD_REQUIRED
 
 .. versionadded:: 3.16
 
-Default value for :prop_tgt:`OBJC_STANDARD_REQUIRED` property of targets.
-
-This variable is used to initialize the :prop_tgt:`OBJC_STANDARD_REQUIRED`
-property on all targets.  See that target property for additional
-information.
+Default value for :prop_tgt:`OBJC_STANDARD_REQUIRED` target property if set
+when a target is created.
 
 See the :manual:`cmake-compile-features(7)` manual for information on
 compile features and a list of supported compilers.