Make FindGettext compatible with the one provided by CMake
Review Request #119111 - Created July 4, 2014 and submitted
This version will accept the old GETTEXT_PROCESS_PO_FILES() syntax (no PO_FILES argument), but will also accept the new syntax required by CMake's version of this file. It will also warn when PO_FILES is not given.
None whatsoever: Jonathan, you know where this isssue has been seen, can you test?