windows calls genl_prag() during startup

genl_prag() will process  the prag@ command line options, if present

Close #1634

sys/windows/windmain.c

@@ -289,6 +289,9 @@ _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);*/
         nethack_exit(EXIT_FAILURE);
     }
 
+    genl_prag(argc, argv); /* command line options for profession, race,
+                            * alignment, gender */
+
     /* Finished processing options, lock all directory paths */
     for (int i = 0; i < PREFIX_COUNT; i++)
         fqn_prefix_locked[i] = TRUE;