fix up the quit message to be wiseass like python's

bin/hy

@@ -1,7 +1,6 @@
 #!/usr/bin/env python
 
 import sys
-
 from hy.cmdline import cmdline_handler
 
 
@@ -10,7 +9,9 @@ class HyQuitter(object):
         self.name = name
 
     def __repr__(self):
-        self.__call__()
+        return "Use (%s) or Ctrl-D (i.e. EOF) to exit" % (self.name)
+
+    __str__ = __repr__
 
     def __call__(self, code=None):
         try:
@@ -19,8 +20,10 @@ class HyQuitter(object):
             pass
         raise SystemExit(code)
 
+
 __builtins__.quit = HyQuitter('quit')
 __builtins__.exit = HyQuitter('exit')
 
+
 if __name__ == '__main__':
     sys.exit(cmdline_handler("hy", sys.argv))