Show input prompt even on error.

gclient_scm.py

Index: gclient_scm.py
diff --git a/gclient_scm.py b/gclient_scm.py
index a1c26c90e3c6a5f407ab81d0a5ce7901e694ba87..89647ac0eb6f0c10cc6569d0804aba7605f0aa5f 100644
--- a/gclient_scm.py
+++ b/gclient_scm.py
@@ -799,9 +799,9 @@ class GitWrapper(SCMWrapper):
          'an existing branch or use \'git checkout %s -b <branch>\' to\n'
          'create a new branch for your work.') % (revision, self.remote))
 
-  @staticmethod
-  def _AskForData(prompt, options):
+  def _AskForData(self, prompt, options):
     if options.jobs > 1:
+      self.Print(prompt)
       raise gclient_utils.Error("Background task requires input. Rerun "
                                 "gclient with --jobs=1 so that\n"
                                 "interaction is possible.")