builtin/merge.c: drop a parameter that is never used

diff --git a/utf8.c b/utf8.c
index b1e13035f5055caec66a16ff30371d97886cade2..0d20e0acb2b6fb2dd1d63abed676a036b2b7ec2f 100644 (file)
--- a/utf8.c
+++ b/utf8.c
@@ -463,8 +463,8 @@ void strbuf_utf8_replace(struct strbuf *sb_src, int pos, int width,
                w += n;
        }
        strbuf_setlen(&sb_dst, dst - sb_dst.buf);
-       strbuf_attach(sb_src, strbuf_detach(&sb_dst, NULL),
-                     sb_dst.len, sb_dst.alloc);
+       strbuf_swap(sb_src, &sb_dst);
+       strbuf_release(&sb_dst);
 }
 
 int is_encoding_utf8(const char *name)