open - fix warning with possible uninitted var

@fix

src/bin/tools/open/e_open.c

@@ -508,7 +508,7 @@ main(int argc, char *argv[])
       ECORE_GETOPT_VALUE_NONE
    };
    int args;
-   char **cmds;
+   char **cmds = NULL;
 
    args = ecore_getopt_parse(&options, values, argc, argv);
    if (args < 0)