whitespace cleanup

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
diff --git a/editors/diff.c b/editors/diff.c
index d9d709d..cc7ba47 100644
--- a/editors/diff.c
+++ b/editors/diff.c
@@ -230,7 +230,7 @@
 {
 	int i, j;
 
-	if (list[c[k]].y < y)	/* quick look for typical case */
+	if (list[c[k]].y < y)  /* quick look for typical case */
 		return k + 1;
 
 	for (i = 0, j = k + 1;;) {