fix broken export from last commit

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5618 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/base-files/default/etc/functions.sh b/package/base-files/default/etc/functions.sh
index 1909ab2..bf412df 100755 (executable)
--- a/package/base-files/default/etc/functions.sh
+++ b/package/base-files/default/etc/functions.sh
@@ -57,7 +57,7 @@ config_rename() {
        for oldvar in `set | grep ^CONFIG_${OLD}_ | \
                sed -e 's/\(.*\)=.*$/\1/'` ; do
                newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}"
-               export -n "$newvar=\${$oldvar}"
+               eval "export -n \"$newvar=\${$oldvar}\""
                unset "$oldvar"
        done