this error was not visible until recent bump to
busybox 1.24.1 stable which introduced a warning message
when keyword 'local' is not used with a shell-function.

this does not change behavior and is a cosmetic cleanup.
fixes the following output:

root@box:~ ifup <interface>
/sbin/ifup: local: line 362: not in a function
/sbin/ifup: local: line 362: not in a function
/sbin/ifup: local: line 1: not in a function

Signed-off-by: Bastian Bittorf <bitt...@bluebottle.com>
---
 package/network/config/netifd/files/sbin/ifup | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/package/network/config/netifd/files/sbin/ifup 
b/package/network/config/netifd/files/sbin/ifup
index af3aaa8..5515b91 100755
--- a/package/network/config/netifd/files/sbin/ifup
+++ b/package/network/config/netifd/files/sbin/ifup
@@ -67,12 +67,10 @@ if [ -n "$setup_wifi" ] && grep -sq config 
/etc/config/wireless; then
                fi
        }
 
-       local radio_devs
-       local network="$1"
+       network="$1"
        config_load wireless
        config_foreach find_related_radios wifi-iface
 
-       local dev
        for dev in $(echo "$radio_devs" | sort -u); do
                /sbin/wifi up "$dev"
        done
-- 
2.1.4
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