(main): Rev. 1.43 broke option -D. Its meaning in presence of -e is

unclear.  Other programs only support -e.  Remove -D.
(install_service): Remove argument datadir_set.

(main): New option -v.

(main): Exit successfully after -h.

(main): Don't print usage on unknown options, just point to -h.

(print_usage): Rewrite.  Deprecate use of non-option arguments.

include/service.h

@@ -37,7 +37,7 @@
 #define DEFAULT_SERVICE_NAME "Empire Server"
 
 extern int install_service(char *program_name, char *service_name,
-			   int datadir_set, char *config_file);
+			   char *config_file);
 extern int remove_service(char *service_name);
 extern void WINAPI service_main(DWORD argc, LPTSTR *argv);
 #endif