Allow for creating patch series

This allows for specifying a revision range using the id2 parameter of
/patch/. The output that is produced is similar to

    $ git format-patch --stdout id2..id

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/ui-patch.h b/ui-patch.h
index 1641cea..acd37fd 100644
--- a/ui-patch.h
+++ b/ui-patch.h
@@ -1,6 +1,6 @@
 #ifndef UI_PATCH_H
 #define UI_PATCH_H
 
-extern void cgit_print_patch(char *hex, const char *prefix);
+extern void cgit_print_patch(char *hex, const char *old_rev, const char *prefix);
 
 #endif /* UI_PATCH_H */