Help: Minor grammar cleanups of CMAKE_CURRENT_FUNCTION* docs

Help/command/macro.rst

@@ -95,7 +95,7 @@ Unlike a function, the :variable:`CMAKE_CURRENT_FUNCTION`,
 :variable:`CMAKE_CURRENT_FUNCTION_LIST_DIR`,
 :variable:`CMAKE_CURRENT_FUNCTION_LIST_FILE`,
 :variable:`CMAKE_CURRENT_FUNCTION_LIST_LINE` variables are not
-set for macro.
+set for a macro.
 
 .. _`Argument Caveats`:
 

Help/variable/CMAKE_CURRENT_FUNCTION.rst

@@ -2,5 +2,5 @@ CMAKE_CURRENT_FUNCTION
 ----------------------
 
 When executing code inside a :command:`function`, this variable
-contains the name of the current function.  It can be used for
+contains the name of the current function.  It can be useful for
 diagnostic or debug messages.

Help/variable/CMAKE_CURRENT_FUNCTION_LIST_DIR.rst

@@ -2,7 +2,7 @@ CMAKE_CURRENT_FUNCTION_LIST_DIR
 -------------------------------
 
 When executing code inside a :command:`function`, this variable
-contains the full directory of the listfile defining the current function.
+contains the full directory of the listfile that defined the current function.
 
 It is quite common practice in CMake that modules use some additional files
 (e.g., templates to render).  And the code typically did the following:

Help/variable/CMAKE_CURRENT_FUNCTION_LIST_FILE.rst

@@ -2,4 +2,4 @@ CMAKE_CURRENT_FUNCTION_LIST_FILE
 --------------------------------
 
 When executing code inside a :command:`function`, this variable
-contains the full path to the listfile declaring a current function.
+contains the full path to the listfile that defined the current function.

Help/variable/CMAKE_CURRENT_FUNCTION_LIST_LINE.rst

@@ -2,4 +2,5 @@ CMAKE_CURRENT_FUNCTION_LIST_LINE
 --------------------------------
 
 When executing code inside a :command:`function`, this variable
-contains the line number in the listfile where a current function has defined.
+contains the line number in the listfile where the current function
+was defined.