gnulib-tool typo fix for coreutils bootstrap

[Paul Eggert]

I installed this:

2006-09-18  Paul Eggert  <address@hidden>

        * gnulib-tool (avoidlist): Fix typo that broke options like
        --avoid=lock that are used by coreutils bootstrap.

--- gnulib-tool.~1.166.~        2006-09-18 08:50:05.000000000 -0700
+++ gnulib-tool 2006-09-18 10:03:47.000000000 -0700
@@ -525,7 +525,7 @@ func_relconcat ()
         shift ;;
       --avoid=* )
         arg=`echo "X$1" | sed -e 's/^X--avoid=//'`
-        func_append " $arg"
+        func_append avoidlist " $arg"
         shift ;;
       --lgpl )
         lgpl=true