ngprism: Allow the use of "ngprism stop" to kill the server.

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@10591 bbc10eb1-c90d-0410-af57-cb519fbb1720

prism/src/prism/ngprism.c

@@ -691,6 +691,14 @@ int main(int argc, char *argv[], char *env[]) {
     nailgun_port = NAILGUN_PORT_DEFAULT;
   }
   
+  /* if executing just the ng client with no arguments or -h|--help, then
+     display usage and exit.  Don't handle -h|--help if a command other than
+     ng or ng.exe was used, since the appropriate nail should then handle
+     --help. */
+  if (argc > 1 && strcmp("stop", argv[1]) == 0) {
+    cmd = "ng-stop";
+  }
+     
   /* if executing just the ng client with no arguments or -h|--help, then
      display usage and exit.  Don't handle -h|--help if a command other than
      ng or ng.exe was used, since the appropriate nail should then handle