Correct mistake in error message text

Author: dcoutts

cabal-install/Distribution/Client/CmdFreeze.hs

@@ -60,7 +60,7 @@ freezeAction (configFlags, configExFlags, installFlags, haddockFlags)
              extraArgs globalFlags = do
 
     unless (null extraArgs) $
-      die $ "'fetch' doesn't take any extra arguments: "
+      die $ "'freeze' doesn't take any extra arguments: "
          ++ unwords extraArgs
 
     cabalDir <- defaultCabalDir