Help: Clarify COMPILE_LANG_AND_ID release note

Help/release/dev/genex-COMPILE_LANG_AND_ID.rst

@@ -3,5 +3,5 @@ genex-COMPILE_LANG_AND_ID
 
 * A new ``COMPILE_LANG_AND_ID`` generator expression was introduced to
   allow specification of compile options for target files based on the
-  :variable:`CMAKE_<LANG>_COMPILER_ID`  and :prop_sf:`LANGUAGE` and of
+  :variable:`CMAKE_<LANG>_COMPILER_ID` and :prop_sf:`LANGUAGE` of
   each source file.