Fix typo in gnt_cluster output

Fixes issue #1015
Signed-off-by: Aaron Karper <akarper@google.com>
Reviewed-by: Helga Velroyen <helgav@google.com>

lib/client/gnt_cluster.py

@@ -2082,7 +2082,7 @@ def _UpgradeAfterConfigurationChange(oldversion):
   if not _RunCommandAndReport([pathutils.POST_UPGRADE, oldversion]):
     returnvalue = 1
 
-  ToStdout("Unpasuing the watcher.")
+  ToStdout("Unpausing the watcher.")
   if not _RunCommandAndReport(["gnt-cluster", "watcher", "continue"]):
     returnvalue = 1