completion: don't set PARSE_OPT_NOCOMPLETE on --rerere-autoupdate

diff --git a/utf8.c b/utf8.c
index 47a42047c814fb5c1a933d75fe1b5ecf338dfda1..2c27ce0137f8a60ca2fadf855f2c67738931e2f8 100644 (file)
--- a/utf8.c
+++ b/utf8.c
@@ -32,7 +32,7 @@ static int bisearch(ucs_char_t ucs, const struct interval *table, int max)
        if (ucs < table[0].first || ucs > table[max].last)
                return 0;
        while (max >= min) {
-               mid = (min + max) / 2;
+               mid = min + (max - min) / 2;
                if (ucs > table[mid].last)
                        min = mid + 1;
                else if (ucs < table[mid].first)