change the display of the original patch (e.g., increasing context,
coloring moved lines differently, or using an external diff viewer).
+It relies on the contents of the .git directory of your current
+project working tree. In other words, it works anywhere
+L<git-am(1)> works. Otherwise, C<--git-dir=> may be specified
+any number of times to add repositories to build blob data from.
+
=head1 OPTIONS
-In addition to many L<git-diff(1)>, the following options are
-supported.
+In addition to many L<git-diff(1)> options (e.g. C<-W>, C<-w>,
+C<-U $LINES>) the following options are supported:
=over
Read message from stdin. This is implicit if no arguments are given
and stdin is a pipe or regular file.
+For users of text editors and pagers capable of piping its
+buffer to arbitrary commands, it is useful to pipe a patch email
+to C<lei rediff> before piping it to L<git-am(1)>. The output
+of C<lei rediff> is compatible with C<git am> if its input was a
+patch email.
+
+=item --drq[=COUNT]
+
+De-Re-Quote. De-quote the input and re-quotes (the output).
+Removes COUNT levels of C<E<gt> > email reply prefixes and
+re-adds them upon regenerating the diff.
+
+This switch is intended as a convenience for running inside a
+pipe-capable text editor when writing replies to a patch email.
+Note: this may over-add C<E<gt> > prefixes if some input lines
+are missing C<E<gt> > prefixes.
+
+COUNT is 1 if unspecified; in other words, C<--drq=1> and
+C<--drq> are equivalent.
+
+It implies L</--quiet> unless L</--verbose> is specified
+since text editors tend to combine stderr with stdout.
+
+=item --dequote-only[=COUNT]
+
+Like L</--drq>, but does not re-add quote prefixes to the output.
+
+This can be useful for feeding a hunk to L<git-apply(1)>
+or L<patch(1)> while writing a reply or further processing
+by another diff viewer.
+
+Unlike L</--drq>, it does NOT implies L</--quiet>.
+
=item --git-dir=DIR
Specify an additional .git/ directory to scan. This option may be
given multiple times.
+Default: the output of C<git rev-parse --git-dir>
+
=item --no-cwd
Do not look in the git repository of the current working directory.
+=item -q
+
+=item --quiet
+
+Suppress progress output.
+
=item -v
=item --verbose