STYLE: fix docs

Source/cmFileCommand.h

@@ -73,27 +73,27 @@ public:
       "  FILE(RELATIVE_PATH variable directory file)\n"
       "WRITE will write a message into a file called 'filename'. It "
       "overwrites the file if it already exists, and creates the file "
-      "if it does not exists.\n"
+      "if it does not exist.\n"
       "APPEND will write a message into a file same as WRITE, except "
       "it will append it to the end of the file\n"
       "NOTE: When using FILE WRITE and FILE APPEND, the produced file "
       "cannot be used as an input to CMake (CONFIGURE_FILE, source file ...) "
-      "because it will lead to infinite loop. Use CONFIGURE_FILE if you "
+      "because it will lead to an infinite loop. Use CONFIGURE_FILE if you "
       "want to generate input files to CMake.\n"
       "READ will read the content of a file and store it into the "
       "variable.\n"
       "GLOB will generate a list of all files that match the globbing "
       "expressions and store it into the variable. Globbing expressions "
-      "are similar to regular expressions, but much simpler..\n"
-      "Examples of globbing expressions:\n"
+      "are similar to regular expressions, but much simpler.\n"
+      "Examples of globbing expressions include:\n"
       "   *.cxx      - match all files with extension cxx\n"
-      "   *.vt?      - match all files with extension vta, vtb, ... vtz\n"
+      "   *.vt?      - match all files with extension vta,...,vtz\n"
       "   f[3-5].txt - match files f3.txt, f4.txt, f5.txt\n"
       "GLOB_RECURSE will generate similar list as the regular GLOB, except "
       "it will traverse all the subdirectories of the matched directory and "
       "match the files.\n"
-      "Example of recursive globbing:\n"
-      "   /dir/*.py  - match all python files /dir and subdirectories\n"
+      "Examples of recursive globbing include:\n"
+      "   /dir/*.py  - match all python files in /dir and subdirectories\n"
       "MAKE_DIRECTORY will create a directory at the specified location\n"
       "RELATIVE_PATH will determine relative path from directory to the given file";
     }