Document --patch-with-raw

Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/diff-options.txt

@@ -4,6 +4,9 @@
 -u::
 	Synonym for "-p".
 
+--patch-with-raw::
+	Generate patch but keep also the default raw diff output.
+
 -z::
 	\0 line termination on output
 

diff.h

@@ -113,6 +113,8 @@ extern void diffcore_std_no_resolve(struct diff_options *);
 "  -z            output diff-raw with lines terminated with NUL.\n" \
 "  -p            output patch format.\n" \
 "  -u            synonym for -p.\n" \
+"  --patch-with-raw\n" \
+"                output both a patch and the diff-raw format.\n" \
 "  --name-only   show only names of changed files.\n" \
 "  --name-status show names and status of changed files.\n" \
 "  --full-index  show full object name on index lines.\n" \