Merge pull request #1341 from markusscherer/master

fix title setting bug in xterm and urxvt 

lib/termsupport.zsh

@@ -27,7 +27,7 @@ function omz_termsupport_preexec {
   emulate -L zsh
   setopt extended_glob
   local CMD=${1[(wr)^(*=*|sudo|ssh|-*)]} #cmd name only, or if this is sudo or ssh, the next cmd
-  title "$CMD" "%100>...>$2%<<"
+  title "$CMD" "%100>...>${2:gs/%/%%}%<<"
 }
 
 autoload -U add-zsh-hook