etc-update: ignore non-existent CONFIG_PROTECT
diff --git a/bin/etc-update b/bin/etc-update
index 135de45..b076520 100755
--- a/bin/etc-update
+++ b/bin/etc-update
@@ -73,8 +73,6 @@
 	for path in ${SCAN_PATHS} ; do
 		path="${EROOT%/}${path}"
 
-		[[ -w ${path} ]] || die "Need write access to ${path}"
-
 		if [[ ! -d ${path} ]] ; then
 			[[ ! -f ${path} ]] && continue
 			local my_basename="${path##*/}"
@@ -86,6 +84,11 @@
 		fi
 		find_opts+=( ! -name '.*~' ! -iname '.*.bak' -print )
 
+		if [ ! -w "${path}" ] ; then
+			[ -e "${path}" ] || continue
+			die "Need write access to ${path}"
+		fi
+
 		local file ofile b=$'\001'
 		for file in $(find "${path}"/ "${find_opts[@]}" |
 		              sed \