#include "run-command.h"
 #include "pkt-line.h"
 
+static const char usage_msg[] =
+       "git remote-ext <remote> <url>";
+
 /*
  * URL syntax:
  *     'command [arg1 [arg2 [...]]]'   Invoke command with given arguments.
                                special = str[rpos];
                                if (rpos == 1)
                                        break;
-                               /* Fall-through to error. */
+                               /* fallthrough */
                        default:
                                die("Bad remote-ext placeholder '%%%c'.",
                                        str[rpos]);
 int cmd_remote_ext(int argc, const char **argv, const char *prefix)
 {
        if (argc != 3)
-               die("Expected two arguments");
+               usage(usage_msg);
 
        return command_loop(argv[2]);
 }