use DIV_ROUND_UP

diff --git a/builtin/log.c b/builtin/log.c
index 57ce470f5094c238ea4d5390f358b5cdd9499a56..96c050b450056205ea971340e824d1e3d87e0d6a 100644 (file)
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1302,7 +1302,7 @@ static struct commit *get_base_commit(const char *base_commit,
 
                if (rev_nr % 2)
                        rev[i] = rev[2 * i];
-               rev_nr = (rev_nr + 1) / 2;
+               rev_nr = DIV_ROUND_UP(rev_nr, 2);
        }
 
        if (!in_merge_bases(base, rev[0]))