Add an XXX comment about a small inefficiency. There's no sense in

fixing it, but I think it should be documented.

tools/webupdate

@@ -30,7 +30,7 @@
 #	2	- failure in CVS operations
 #	3	- failure in make operations
 #
-# $FreeBSD: www/tools/webupdate,v 1.1 2001/06/06 22:45:43 dd Exp $
+# $FreeBSD: www/tools/webupdate,v 1.2 2001/06/14 04:13:24 dd Exp $
 #
 
 #
@@ -72,6 +72,11 @@ cd $BUILDDIR || exit 1;
 rm -f $LOGFILE 2>/dev/null;
 touch $LOGFILE;
 
+# XXX If one of the directories in $subtrees doesn't exist, *all* of
+# them will be wiped and checked out again.  This should only happen
+# if something went terribly wrong, or if there's a new entry in
+# $subtrees, so I (dd) don't plan on fixing it; there's no sense in
+# optimizing something that should only happen twice a year (if that).
 cond="X`date '+%u'` = X7 `echo $subtrees | sed -E 's/([^ ]*)/-o ! -d \1/g'`";
 if [ $cond ]; then
 	# Remove the old copies.