version.h.in: fix cmake comment

Fix comment indicating path to the cmake script generating version.h file.

Signed-off-by: Joel Guittet <joelguittet@gmail.com>

Author: joelguittet

version.h.in

@@ -1,7 +1,7 @@
 #ifndef _@VERSION_TYPE@_VERSION_H_
 #define _@VERSION_TYPE@_VERSION_H_
 
-/* The template values come from cmake/version.cmake
+/* The template values come from cmake/modules/version.cmake
  * BUILD_VERSION related template values will be 'git describe',
  * alternatively user defined BUILD_VERSION.
  */