treewide: add "exit 0" for uci-defaults files

uci-defaults scripts are supposed to be run once after firstboot
and then removed. However, the removal only takes place if the
subshell created for the sourced scripts returns exit code 0.

For some of the files, the last command returned a different exit
code, though, leading to the script remaining in its location and
being executed for every boot.

To prevent cases like the latter, this adds an "exit 0" to all
uci-defaults files in our package store. While at it, remove the
shebang for all these files since they are sourced (and not
executed).

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Reviewed-by: Fabian Bläse <fabian@blaese.de>

src/packages/fff/fff-alfred-monitoring-proxy/files/etc/uci-defaults/52-alfred-master

@@ -1,6 +1,5 @@
-#!/bin/sh
-
 uci -q set "alfred.alfred.mode=master"
 
 uci -q commit alfred
 
+exit 0

src/packages/fff/fff-alfred/files/etc/uci-defaults/51-fff-alfred

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 >/etc/config/alfred
 
 uci batch <<EOF
@@ -10,3 +8,5 @@ uci batch <<EOF
   set alfred.alfred.start_vis='0'
   set alfred.alfred.run_facters='0'
 EOF
+
+exit 0

src/packages/fff/fff-babeld/files/etc/uci-defaults/01-iproute

@@ -1,3 +1,3 @@
-#!/bin/sh
-
 echo "10 fff" >> /etc/iproute2/rt_tables
+
+exit 0

src/packages/fff/fff-babeld/files/etc/uci-defaults/02-network-rules

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 uci batch <<EOF
   add network rule
   set network.@rule[0].src='10.50.0.0/16'
@@ -41,6 +39,6 @@ uci batch <<EOF
   set network.@rule6[2].priority='31'
 EOF
 
-uci commit
+uci commit network
 
 exit 0

src/packages/fff/fff-batman-adv/files/etc/uci-defaults/93-fff-batman-adv

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 uci batch <<EOF
   set network.bat0=interface
   set network.bat0.proto=batadv

src/packages/fff/fff-boardname/files/etc/uci-defaults/15-fff-boardname

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 BOARD=$(cat /var/sysinfo/board_name)
 
 case "$BOARD" in
@@ -73,3 +71,5 @@ esac
 
 uci set board.model.name=$BOARD
 uci commit board
+
+exit 0

src/packages/fff/fff-config/files/etc/uci-defaults/05-config-system-migration

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 if [ ! -s /etc/config/fff ] ; then
 
 	UPGRADE_hostname=$(uci -q get "system.@system[0].hostname")
@@ -25,3 +23,5 @@ if [ ! -s /etc/config/fff ] ; then
 
 	uci -q commit fff
 fi
+
+exit 0

src/packages/fff/fff-config/files/etc/uci-defaults/98-configure-fff

@@ -1,4 +1,3 @@
-#!/bin/sh
 # Copyright 2017 Adrian Schmutzler
 # License GPLv3
 
@@ -20,3 +19,5 @@ poe_passthrough=$(uci -q get "fff.poe_passthrough.active")
 if [ "$poe_passthrough" = "1" ] && [ -s /usr/lib/fff-support/activate_poe_passthrough.sh ] ; then
 	/usr/lib/fff-support/activate_poe_passthrough.sh
 fi
+
+exit 0

src/packages/fff/fff-dhcp/files/etc/uci-defaults/90-fff-dhcp

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 uci batch <<EOF
   delete dhcp.@dnsmasq[0]
   delete dhcp.lan

src/packages/fff/fff-fastd/files/etc/uci-defaults/55_fff-fastd

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 /etc/init.d/fastd disable
 
 >/etc/config/fastd
@@ -32,3 +30,5 @@ echo "#!/bin/sh" > /etc/fastd/fff/up.sh
 echo "ip link set up dev fffVPN" >> /etc/fastd/fff/up.sh
 echo "batctl if add fffVPN" >> /etc/fastd/fff/up.sh
 chmod +x /etc/fastd/fff/up.sh
+
+exit 0

src/packages/fff/fff-macnock/files/etc/uci-defaults/52-fff-macnock

@@ -1,6 +1,6 @@
-#!/bin/sh
-
 if ! grep -q u32 /etc/iproute2/ematch_map;
 then
     echo "3 u32" > /etc/iproute2/ematch_map
 fi
+
+exit 0

src/packages/fff/fff-ra/files/etc/uci-defaults/90-fff-ra

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 uci batch <<EOF
 	set dhcp.mesh=dhcp
 	set dhcp.mesh.interface='mesh'

src/packages/fff/fff-simple-tc/files/etc/uci-defaults/98-configure-tc

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 traffic_enabled=$(uci -q get "fff.trafficcontrol.enabled")
 traffic_in=$(uci -q get "fff.trafficcontrol.limit_in")
 traffic_out=$(uci -q get "fff.trafficcontrol.limit_out")
@@ -10,3 +8,5 @@ uci set "simple-tc.example.limit_ingress=${traffic_in}"
 uci set "simple-tc.example.limit_egress=${traffic_out}"
 
 uci commit simple-tc
+
+exit 0

src/packages/fff/fff-support/files/etc/uci-defaults/80-banner-info

@@ -1,4 +1,3 @@
-#!/bin/sh
 # Copyright 2018 Adrian Schmutzler
 # License GPLv3
 
@@ -7,3 +6,5 @@
 echo "" >> /etc/banner
 echo "> $(cat /tmp/sysinfo/model 2>/dev/null) @ $FIRMWARE_VERSION" >> /etc/banner
 echo "" >> /etc/banner
+
+exit 0

src/packages/fff/fff-sysupgrade/files/etc/uci-defaults/99-fff-sysupgrade

@@ -1,4 +1,3 @@
-#!/bin/sh
 # Copyright 2017 Tim Niemeyer
 # License GPLv3
 
@@ -12,3 +11,5 @@ cat > /etc/sysupgrade.conf <<-__EOF__
 /etc/config/gateway
 /etc/hoodfile
 __EOF__
+
+exit 0

src/packages/fff/fff-timeserver/files/etc/uci-defaults/51-fff-timeserver

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 . /lib/functions/fff/timeserver
 
 # No initialization here, this is done in configurehood
@@ -7,3 +5,5 @@
 uci -q set "system.@system[0].timezone=CET-1CEST,M3.5.0,M10.5.0/3"
 
 uci -q commit system
+
+exit 0

src/packages/fff/fff-web/files/etc/uci-defaults/93-fff-uhttpd

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 . /lib/functions/fff/keyxchange
 
 ln -s "$hoodfilewww" /www/hood/keyxchangev2data
@@ -46,4 +44,5 @@ uci batch <<EOF
 EOF
 
 uci commit uhttpd
+
 exit 0

src/packages/fff/fff-wireguard/files/etc/uci-defaults/05-wireguard-rules

@@ -1,5 +1,3 @@
-#!/bin/sh
-
 uci batch <<EOF
 	set network.wireguard_main=rule6
 	set network.wireguard_main.mark='0xc8'

src/packages/fff/fff-wireless/files/etc/uci-defaults/24a-fff-wireless

@@ -1,4 +1,3 @@
-#!/bin/sh
 # Copyright 2016 Tim Niemeyer
 # Copyright 2019 Adrian Schmutzler
 # License GPLv3
@@ -81,4 +80,6 @@ config_foreach configWifiDevice wifi-device
 uci commit network
 uci commit wireless
 
+exit 0
+
 # vim: set noexpandtab:tabstop=4

src/packages/fff/fff-wireless/files/etc/uci-defaults/24b-config-wireless

@@ -1,4 +1,3 @@
-#!/bin/sh
 # Copyright 2018 Adrian Schmutzler
 # License GPLv3
 
@@ -39,3 +38,5 @@ esac
 
 # rssileds: always disable if package is installed
 [ -x "/etc/init.d/rssileds" ] && /etc/init.d/rssileds disable
+
+exit 0