- _cd(): trim leading './' from relative completions, since bash will see

'./foo' and 'foo' as two distinct completions and return both, even though
  the './' will be cropped when displaying them

bash_completion

@@ -1,6 +1,6 @@
 #   bash_completion - some programmable completion functions for bash 2.05a
 #
-#   $Id: bash_completion,v 1.189 2002/03/08 18:26:41 ianmacd Exp $
+#   $Id: bash_completion,v 1.190 2002/03/08 19:46:15 ianmacd Exp $
 #
 #   Copyright (C) Ian Macdonald <ian@caliban.org>
 #
@@ -1695,6 +1695,10 @@ _cd()
 	fi
 	IFS=$' \t\n'
 	_filedir -d
+	# remove leading ./ from completions
+	for (( i=0; i < ${#COMPREPLY[@]}; i++ )); do
+		COMPREPLY[i]=${COMPREPLY[i]/#.\//}
+	done
 
 	return 0
 }