pack-objects: do not accept "--index-version=version,"

Signed-off-by: Nguyễn Thái Ngọc Duy <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: pclouds

builtin/pack-objects.c

@@ -2471,7 +2471,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
 			pack_idx_opts.version = strtoul(arg + 16, &c, 10);
 			if (pack_idx_opts.version > 2)
 				die("bad %s", arg);
-			if (*c == ',')
+			if (*c == ',' && c[1])
 				pack_idx_opts.off32_limit = strtoul(c+1, &c, 0);
 			if (*c || pack_idx_opts.off32_limit & 0x80000000)
 				die("bad %s", arg);

t/t5302-pack-index.sh

@@ -73,6 +73,10 @@ test_expect_success 'index-pack --verify on index version 2' '
 	git index-pack --verify "test-2-${pack2}.pack"
 '
 
+test_expect_success \
+    'pack-objects --index-version=2, is not accepted' \
+    'test_must_fail git pack-objects --index-version=2, test-3 <obj-list'
+
 test_expect_success \
     'index v2: force some 64-bit offsets with pack-objects' \
     'pack3=$(git pack-objects --index-version=2,0x40000 test-3 <obj-list)'