commit.c: make "tree" a const pointer in commit_tree*()

diff --git a/commit.h b/commit.h
index bd841f4d0c5e2b7fb8e83d55ba0d0b7e2839bf8a..dd8ae45918aa649ed75d96fe0b20a2e3193dfc55 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -231,11 +231,11 @@ struct commit_extra_header {
 extern void append_merge_tag_headers(struct commit_list *parents,
                                     struct commit_extra_header ***tail);
 
-extern int commit_tree(const struct strbuf *msg, unsigned char *tree,
+extern int commit_tree(const struct strbuf *msg, const unsigned char *tree,
                       struct commit_list *parents, unsigned char *ret,
                       const char *author, const char *sign_commit);
 
-extern int commit_tree_extended(const struct strbuf *msg, unsigned char *tree,
+extern int commit_tree_extended(const struct strbuf *msg, const unsigned char *tree,
                                struct commit_list *parents, unsigned char *ret,
                                const char *author, const char *sign_commit,
                                struct commit_extra_header *);