t/test-lib.sh: fix TRASH_DIRECTORY handling

diff --git a/builtin/commit.c b/builtin/commit.c
index 3348aa14e9d5a76fa06e43625c5d74cb047accb6..d21d07a1a8e9fbc365a4555a0f9e81d0c1f2a7d0 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -124,8 +124,10 @@ static int opt_parse_m(const struct option *opt, const char *arg, int unset)
        if (unset)
                strbuf_setlen(buf, 0);
        else {
+               if (buf->len)
+                       strbuf_addch(buf, '\n');
                strbuf_addstr(buf, arg);
-               strbuf_addstr(buf, "\n\n");
+               strbuf_complete_line(buf);
        }
        return 0;
 }