[PATCH 2/7] fix textconv leak in emit_rewrite_diff

[Jeff King <peff@peff.net>]

We correctly free() for the normal diff case, but leak for
rewrite diffs.

Signed-off-by: Jeff King <peff@peff.net>
---
I suppose we never noticed this because rewrite diffs and textconv are
both uncommonly used codepaths, and leaking a little bit of textconv
probably just isn't that big a deal in a short-running process. But
stopping leaks is good.

 diff.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/diff.c b/diff.c
index 2daa732..db2cd5d 100644
--- a/diff.c
+++ b/diff.c
@@ -550,6 +550,10 @@ static void emit_rewrite_diff(const char *name_a,
 		emit_rewrite_lines(&ecbdata, '-', data_one, size_one);
 	if (lc_b)
 		emit_rewrite_lines(&ecbdata, '+', data_two, size_two);
+	if (textconv_one)
+		free(data_one);
+	if (textconv_two)
+		free(data_two);
 }
 
 struct diff_words_buffer {
-- 
1.7.0.4.299.gba9d4