On prompts don't add a new line when printing.

drover.py

 # Copyright (c) 2009 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import optparse
 import os
 import re
 import subprocess
 import sys
 import webbrowser
@@ skipping 319 matching lines @@
   """
   map = []
   for file_info in files_info:
     map.append(file_info[2] + "/" + file_info[3])
   return map
 
 def prompt(question):
   answer = None
 
   while not answer:
-    print question + " [y|n]:"
+    print question + " [y|n]:",
     answer = sys.stdin.readline()
     if answer.lower().startswith('n'):
       return False
     elif answer.lower().startswith('y'):
       return True
     else:
       answer = None 
 
 def text_prompt(question, default):
   print question + " [" + default + "]:"
@@ skipping 131 matching lines @@
 
   if not options.merge and not options.revert:
     option_parser.error("You need at least --merge or --revert")
     sys.exit(1)
 
   if options.merge and not options.branch:
     option_parser.error("--merge requires a --branch")
     sys.exit(1)
 
   sys.exit(main(options, args))