PATCH: check for no parameters to compdef

[Adam Spiers <adam@xxxxxxxxxxxxxxxxxxxxxxx>]

Any call to compdef with too few parameters resulted in a rather ugly
error:

  compdef: shift: shift count must be <= $# [194]

when shift ran out of things to shift.  Here's a very crude check to
stop this happening.

Index: Completion/Core/compinit
===================================================================
RCS file: /usr/local/cvsroot/zsh/Completion/Core/compinit,v
retrieving revision 1.1.1.3
diff -u -r1.1.1.3 compinit
--- Completion/Core/compinit	1999/09/16 11:37:17	1.1.1.3
+++ Completion/Core/compinit	1999/09/17 01:43:11
@@ -152,6 +152,11 @@
 
   # Get the options.
 
+  if [[ $#* -eq 0 ]]; then
+    echo "compdef needs parameters"
+    return 1
+  fi
+  
   while getopts "anpPkd" opt; do
     case "$opt" in
     a)    autol=yes;;
@@ -175,6 +180,11 @@
   done
   shift OPTIND-1
 
+  if [[ $#* -eq 0 ]]; then
+    echo "compdef needs parameters"
+    return 1
+  fi
+  
   if [[ -z "$delete" ]]; then
     # Adding definitions, first get the name of the function name
     # and probably do autoloading.