Update cups.spec.in
Update cups.spec.in



To fix issue 5043.

Checking for unpackaged file(s): /usr/lib/rpm/check-files /root/rpmbuild/BUILDROOT/cups-2.2.4-0.x86_64
error: Installed (but unpackaged) file(s) found:
   /usr/share/locale/zh_CN/cups_zh_CN.po


RPM build errors:
    Installed (but unpackaged) file(s) found:
   /usr/share/locale/zh_CN/cups_zh_CN.po
OpenPrinting/cups,apple/cups,apple/cups,OpenPrinting/cups,OpenPrinting/cups,apple/cups,OpenPrinting/cups,apple/cups