Merge topic 'inject_code_via_variable'

280a333e Fix project command documentation typo (#13384)

Source/cmProjectCommand.h

@@ -69,7 +69,7 @@ public:
       "C++ compiler, you can disable the check for it by explicitly listing "
       "the languages you want to support, e.g. C.  By using the special "
       "language \"NONE\" all checks for any language can be disabled. "
-      "If a variable exists called CMAKE_PROJECT_<projectName>_INCLUDE_FILE, "
+      "If a variable exists called CMAKE_PROJECT_<projectName>_INCLUDE, "
       "the file pointed to by that variable will be included as the last step "
       "of the project command.";
     }