Fix the sysctl json parsing

1 token shift during the token reading like this:

file:

```{"hostname":"951d97892fdb","containers":[{"id":"951d97892fdbde41341606127fba406788a39117f36da61048a92350566cab2d","rootfs":"/rootfs","fstype":"ext4","imag
e":"sda","addr":"0:0","fsmap":[{"source":"rLfDEQDukA","path":"/dev/termination-log","readOnly":false,"dockerVolume":true},{"source":"ZuaaEsQpWD","path":"/etc/hosts","readOnly":false,"dockerVolume":true}],"sysctl":{"vm.overcommit_memory":"
1"},"process":{"terminal":false,"stdio":1,"stderr":2,"args":["sh"],"envs":[{"env":"PATH","value":"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"}],"workdir":"/"},"restartPolicy":"never","initialize":false}],"interfaces":[{"
device":"eth0","ipAddress":"172.16.1.227","netMask":"255.255.0.0"}],"dns":["172.16.0.2","8.8.8.8"],"routes":[{"dest":"0.0.0.0/0","gateway":"172.16.0.1","device":"eth0"}],"shareDir":"share_dir","portmappingWhiteLists":{"internalNetworks":[
"172.16.0.0/16"]}}```

```I0208 03:13:11.761152   21073 init_comm.go:68] [console] 31 name sysctl
I0208 03:13:11.761267   21073 init_comm.go:68] [console] sysctl size 1
I0208 03:13:11.761404   21073 init_comm.go:68] [console] sysctl 1:process```

Signed-off-by: Wang Xu <gnawux@gmail.com>

Author: gnawux

src/parse.c

@@ -465,11 +465,11 @@ static int container_parse_sysctl(struct hyper_container *c, char *json, jsmntok
 
 	i++;
 	for (j = 0; j < c->sys_num; j++) {
-		c->sys[j].path = (json_token_str(json, &toks[++i]));
+		c->sys[j].path = (json_token_str(json, &toks[i++]));
 		while((p = strchr(c->sys[j].path, '.')) != NULL) {
 			*p = '/';
 		}
-		c->sys[j].value = (json_token_str(json, &toks[++i]));
+		c->sys[j].value = (json_token_str(json, &toks[i++]));
 		dbg_pr(stdout, "sysctl %s:%s\n", c->sys[j].path, c->sys[j].value);
 	}
 	return i;