restrict the patch filtering

diff --git a/builtin-ls-tree.c b/builtin-ls-tree.c
index 201defd9344a25e16066dc7d0a0a8f5707a930cb..6472610ac2fecb8096ecab8fe29331a6fd6c009b 100644 (file)
--- a/builtin-ls-tree.c
+++ b/builtin-ls-tree.c
@@ -118,7 +118,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
                                chomp_prefix = 0;
                                break;
                        }
-                       if (!strncmp(argv[1]+2, "abbrev=",7)) {
+                       if (!prefixcmp(argv[1]+2, "abbrev=")) {
                                abbrev = strtoul(argv[1]+9, NULL, 10);
                                if (abbrev && abbrev < MINIMUM_ABBREV)
                                        abbrev = MINIMUM_ABBREV;