Description: Use /dev/null instead of /dev/tty for -c test
 Hopefully solves the according test suite failures on Hurd. Suggested
 by Bart Martens.
Author: Axel Beckert <abe@debian.org>
Bug: http://www.zsh.org/mla/workers/2013/msg00547.html

Index: zsh/Test/C02cond.ztst
===================================================================
--- zsh.orig/Test/C02cond.ztst	2013-09-20 16:21:32.000000000 +0200
+++ zsh/Test/C02cond.ztst	2013-09-20 17:59:03.000000000 +0200
@@ -41,8 +41,8 @@
   fi
 0D:-b cond
 
-  # Use hardcoded /dev/tty because globbing inside /dev fails on Cygwin
-  char=/dev/tty
+  # Use hardcoded /dev/null because of /dev/tty issues on GNU/Hurd
+  char=/dev/null
   [[ -c $char && ! -c $zerolength ]]
 0:-c cond