fix a typo

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6228 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/base-files/files/etc/functions.sh b/package/base-files/files/etc/functions.sh
index cc7b70e..5c353a3 100755 (executable)
--- a/package/base-files/files/etc/functions.sh
+++ b/package/base-files/files/etc/functions.sh
@@ -77,7 +77,7 @@ config_clear() {
        CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , ,")"
        CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"
 
-       for oldvar in `set | grep ^CONFIG_${SECTION:+$SECTION_} | \
+       for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \
                sed -e 's/\(.*\)=.*$/\1/'` ; do 
                unset $oldvar 
        done