Index: /trunk/locker/sbin/vhostcert
===================================================================
--- /trunk/locker/sbin/vhostcert	(revision 2804)
+++ /trunk/locker/sbin/vhostcert	(revision 2805)
@@ -61,5 +61,5 @@
         print(scripts_to_pem(sys.stdin.read().encode()).decode(), end='')
     else:
-        print('usage: {} {import|export}'.format(__file__), file=sys.stderr)
+        print('usage: {} {{import|export}}'.format(__file__), file=sys.stderr)
 
 if __name__ == '__main__':