merge-base --fork-point doc: clarify the example and failure modes

diff --git a/line-log.c b/line-log.c
index 9510296659a39475008aaa41c0a42196dc8d8d6d..a23b910471b6c3195e18aad3cbdf225ae200cca0 100644 (file)
--- a/line-log.c
+++ b/line-log.c
@@ -43,9 +43,10 @@ void range_set_release(struct range_set *rs)
 static void range_set_copy(struct range_set *dst, struct range_set *src)
 {
        range_set_init(dst, src->nr);
-       memcpy(dst->ranges, src->ranges, src->nr*sizeof(struct range_set));
+       COPY_ARRAY(dst->ranges, src->ranges, src->nr);
        dst->nr = src->nr;
 }
+
 static void range_set_move(struct range_set *dst, struct range_set *src)
 {
        range_set_release(dst);