revision.c: explain what tree_difference does

diff --git a/merge-index.c b/merge-index.c
index a9983dd78ad5cd1e364f0e00c259bdb7e6f151f0..7027d7865971646f178690a150246d9bc4d674c0 100644 (file)
--- a/merge-index.c
+++ b/merge-index.c
@@ -60,7 +60,7 @@ static int merge_entry(int pos, const char *path)
                        break;
                found++;
                strcpy(hexbuf[stage], sha1_to_hex(ce->sha1));
-               sprintf(ownbuf[stage], "%o", ntohl(ce->ce_mode) & (~S_IFMT));
+               sprintf(ownbuf[stage], "%o", ntohl(ce->ce_mode));
                arguments[stage] = hexbuf[stage];
                arguments[stage + 4] = ownbuf[stage];
        } while (++pos < active_nr);