override munge_files
override munge_files

this narrows our search and is a minor optimization and possibly will prevent
bugs.

Signed-off-by: Caleb Cushing <a9685b85fd9e0f422447bbe825117a592b3fd70d@gmail.com>

dagolden/Dist-Zilla-Plugin-OurPkgVersion,xenoterracide/Dist-Zilla-Plugin-OurPkgVersion