simplify the "no changes added to commit" message

diff --git a/builtin-commit-tree.c b/builtin-commit-tree.c
index 146aaffd282987454c0910477cfe7a047f478e94..0651e5927e836d22246d84020576ccb3069b6c5d 100644 (file)
--- a/builtin-commit-tree.c
+++ b/builtin-commit-tree.c
@@ -119,8 +119,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
        }
 
        /* Not having i18n.commitencoding is the same as having utf-8 */
-       encoding_is_utf8 = (!git_commit_encoding ||
-                           !strcmp(git_commit_encoding, "utf-8"));
+       encoding_is_utf8 = is_encoding_utf8(git_commit_encoding);
 
        init_buffer(&buffer, &size);
        add_buffer(&buffer, &size, "tree %s\n", sha1_to_hex(tree_sha1));