The patch can be provided on stdin or as a file. Alternatively, when
an argument is given that does not point to an existing file, it is
-taken as a reference to a commit in the current repository, and
+taken as a reference to a commit in the current git repository, and
L<git-format-patch(1)> is used to generate the patch.
=head1 OPTIONS
=item --stdin
-Read patch from stdin.
+Read message from stdin. This is implicit if no arguments are given
+and stdin is a pipe or regular file.
=item --debug