parseopt: handle malformed --expire arguments more nicely

diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c
index 60bfe487893f9ac6c2523242f20ad3d335e3a7fd..62ea264c46783374d0f1968c19ea7581498a1f87 100644 (file)
--- a/builtin/unpack-objects.c
+++ b/builtin/unpack-objects.c
@@ -1,5 +1,6 @@
 #include "builtin.h"
 #include "cache.h"
+#include "config.h"
 #include "object.h"
 #include "delta.h"
 #include "pack.h"
@@ -393,7 +394,7 @@ static void unpack_delta_entry(enum object_type type, unsigned long delta_size,
                lo = 0;
                hi = nr;
                while (lo < hi) {
-                       mid = (lo + hi)/2;
+                       mid = lo + (hi - lo) / 2;
                        if (base_offset < obj_list[mid].offset) {
                                hi = mid;
                        } else if (base_offset > obj_list[mid].offset) {