emit_line(): don't emit an empty <SET><RESET> followed by a newline
When emit_line() is called with an empty line (but non-zero length, as we
send line terminating LF or CRLF to the function), it used to emit
<SET><RESET> followed by a newline. Stop the wastefulness.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/diff.c b/diff.c
index 0d7f5ea..108c7d7 100644
--- a/diff.c
+++ b/diff.c
@@ -295,12 +295,13 @@
nofirst = 0;
}
- fputs(set, file);
-
- if (!nofirst)
- fputc(first, file);
- fwrite(line, len, 1, file);
- fputs(reset, file);
+ if (len || !nofirst) {
+ fputs(set, file);
+ if (!nofirst)
+ fputc(first, file);
+ fwrite(line, len, 1, file);
+ fputs(reset, file);
+ }
if (has_trailing_carriage_return)
fputc('\r', file);
if (has_trailing_newline)
