Fix the wrong format of !_TAG_PROGRAM_AUTHOR psuedo tag line

A space was used as a separator between the file field and pattern
field of !_TAG_PROGRAM_AUTHOR psuedo tag line. This should be
a tab.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Merge branch 'master' into pr-47
Bumped to version 0.4.1