CPack/IFW: Correct wording in error message
diff --git a/Modules/CPackIFW.cmake b/Modules/CPackIFW.cmake
index 141e842..8380977 100644
--- a/Modules/CPackIFW.cmake
+++ b/Modules/CPackIFW.cmake
@@ -518,7 +518,7 @@
     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()