Merge branch 'cpack-ifw-error-wording' into release-3.14

Merge-request: !2928

Modules/CPackIFW.cmake

@@ -518,7 +518,7 @@ macro(_cpack_ifw_resolve_script _variable)
     get_filename_component(${_ifw_script_macro} ${_ifw_script_file} ABSOLUTE)
     set(_ifw_script_file ${${_ifw_script_macro}})
     if(NOT EXISTS ${_ifw_script_file})
-      message(WARNING "CPack IFW: script file \"${_ifw_script_file}\" is not exists")
+      message(WARNING "CPack IFW: script file \"${_ifw_script_file}\" does not exist")
       set(${_ifw_script_macro})
     endif()
   endif()