PATCH: fix style insert-ids=single

[Greg Klanderman <gak@xxxxxxxxxxxxxx>]

Hi,

As I reported a few days ago, when completing pids with the style
setting insert-ids=single, it is not possible to enter menu completion
via the menu-complete/menu-select key bindings.  This patch fixes this
specific problem, though I cannot claim to understand all the values
that $compstate[insert] can take on well enough to know that there are
not other desirable state transitions still being prevented by this
style setting.

thanks,
Greg

Index: Completion/Unix/Type/_pids
===================================================================
RCS file: /cvsroot/zsh/zsh/Completion/Unix/Type/_pids,v
retrieving revision 1.3
diff -u -r1.3 _pids
--- Completion/Unix/Type/_pids	8 Jun 2005 12:45:36 -0000	1.3
+++ Completion/Unix/Type/_pids	28 Jan 2009 04:26:16 -0000
@@ -45,7 +45,8 @@
 
   case "$out" in
   menu)   compstate[insert]=menu ;;
-  single) [[ $compstate[nmatches] -ne nm+1 ]] && compstate[insert]= ;;
+  single) [[ $compstate[nmatches] -ne nm+1 && $compstate[insert] != menu ]] &&
+              compstate[insert]= ;;
   *)      [[ ${#:-$PREFIX$SUFFIX} -gt ${#compstate[unambiguous]} ]] &&
               compstate[insert]=menu ;;
   esac