format-patch: improve head calculation for cover-letter

diff --git a/resolve-undo.h b/resolve-undo.h
index e4e5c1b1ad5b3fc7d5a2d516ab3ccccb3e88b993..7a30206aad1fdee74f7e7b6e5967f9f8d9048dbf 100644 (file)
--- a/resolve-undo.h
+++ b/resolve-undo.h
@@ -8,9 +8,10 @@ struct resolve_undo_info {
 
 extern void record_resolve_undo(struct index_state *, struct cache_entry *);
 extern void resolve_undo_write(struct strbuf *, struct string_list *);
-extern struct string_list *resolve_undo_read(void *, unsigned long);
+extern struct string_list *resolve_undo_read(const char *, unsigned long);
 extern void resolve_undo_clear_index(struct index_state *);
 extern int unmerge_index_entry_at(struct index_state *, int);
 extern void unmerge_index(struct index_state *, const char **);
+extern void unmerge_marked_index(struct index_state *);
 
 #endif