[PATCH] Add --pickaxe-all to diff-* brothers.

When --pickaxe-all is given in addition to -S, pickaxe shows the
entire diffs contained in the changeset, not just the diffs for
the filepair that touched the sought-after string.  This is
useful to see the changes in context.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff.h

@@ -36,7 +36,9 @@ extern void diff_setup(int flags);
 
 extern void diffcore_rename(int rename_copy, int minimum_score);
 
-extern void diffcore_pickaxe(const char *needle);
+#define DIFF_PICKAXE_ALL	1
+extern void diffcore_pickaxe(const char *needle, int opts);
+
 extern void diffcore_pathspec(const char **pathspec);
 
 extern int diff_queue_is_empty(void);