Bug#991623: intltool: make distcheck broken

[Dan Nicholson]

Package: intltool
Version: 0.51.0-6

A patch in version 0.51.0-5.1 causes intltool-merge to use a lock file
for a cache. Unfortunately, the upstream patch did not update the
intltool Makefile.in.in stub to clean up the lock file. This causes
"make distcheck" to fail for projects using intltool. See
https://bugs.launchpad.net/intltool/+bug/1712194.

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Dan Nicholson  |  +1.206.437.0833  |  Endless