e sys - frix warning for less noise

though act will not be set unless mnt is also true... this means less
noise from compiler wanrings so we can focus on real errors.

src/bin/e_sys_main.c

@@ -115,7 +115,7 @@ main(int argc,
    char *output = NULL;
 #ifdef HAVE_EEZE_MOUNT
    Eina_Bool mnt = EINA_FALSE;
-   const char *act;
+   const char *act = NULL;
 #endif
    gid_t gid, gl[65536], egid;
 
@@ -355,6 +355,7 @@ main(int argc,
         const char *mp = NULL;
         Eina_Strbuf *buf = NULL;
 
+        if (!act) exit(40);
         if (!mount_args_check(argc, argv, act)) exit(40);
         /* all options are deemed safe at this point, so away we go! */
         if (!strcmp(act, "mount"))