[PATCH 4/4] xdiff/xhistogram: drop need for additional variable

[Tay Ray Chuan <rctay89@gmail.com>]

Having an additional variable (ptr) instead of changing line(1|2) and
count(1|2) was for debugging purposes.

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
---
 xdiff/xhistogram.c |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/xdiff/xhistogram.c b/xdiff/xhistogram.c
index 804e19b..3201fc5 100644
--- a/xdiff/xhistogram.c
+++ b/xdiff/xhistogram.c
@@ -323,11 +323,10 @@ static int histogram_diff(xpparam_t const *xpp, xdfenv_t *env,
 		result = fall_back_to_classic_diff(&index, line1, count1, line2, count2);
 	else {
 		if (lcs.begin1 == 0 && lcs.begin2 == 0) {
-			int ptr;
-			for (ptr = 0; ptr < count1; ptr++)
-				env->xdf1.rchg[line1 + ptr - 1] = 1;
-			for (ptr = 0; ptr < count2; ptr++)
-				env->xdf2.rchg[line2 + ptr - 1] = 1;
+			while (count1--)
+				env->xdf1.rchg[line1++ - 1] = 1;
+			while (count2--)
+				env->xdf2.rchg[line2++ - 1] = 1;
 			result = 0;
 		} else {
 			if (result = histogram_diff(xpp, env,
-- 
1.7.3.4.730.g67af1.dirty