This simple script is not used internally in GNUN. It is merely for convenience only, for those who find it hard to remember the various ‘gettext’ tools and their options.
gnun-clear-previous deletes the “previous” messages in a
PO file, which is a good thing to do after the corresponding translation
is updated and the “fuzzy” marker removed. It can also be used to
wrap long lines in PO files.
Print copyright and version information on the standard output.
Print usage information on stdout.