[Qemu-trivial] [PATCH] qemu-img: mandate argument to 'qemu-img check --repair'

[Prasad Joshi <prasadjoshi.linux@gmail.com>]

qemu-img check --repair option accepts an argument. The argument to
--repair switch can either be 'all' or 'leak'. Fix the long option to
mandate argument with --repair switch.

The patch fixes following segmentation fault

Core was generated by `qemu-img check -f qcow2 --repair all t.qcow2'.
Program terminated with signal 11, Segmentation fault.
0  in img_check (argc=6, argv=0x7fffab9b8a10) at qemu-img.c:588
588	            if (!strcmp(optarg, "leaks")) {
(gdb) bt
  0  img_check (argc=6, argv=0x7fffab9b8a10) at qemu-img.c:588
  1  __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
  2  _start ()
(gdb)

Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com>
---
 qemu-img.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qemu-img.c b/qemu-img.c
index 2e40cc1..77d946b 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -565,7 +565,7 @@ static int img_check(int argc, char **argv)
         static const struct option long_options[] = {
             {"help", no_argument, 0, 'h'},
             {"format", required_argument, 0, 'f'},
-            {"repair", no_argument, 0, 'r'},
+            {"repair", required_argument, 0, 'r'},
             {"output", required_argument, 0, OPTION_OUTPUT},
             {0, 0, 0, 0}
         };
-- 
1.8.1.2