nut: fix other/otherflag custom variables in nut-server.init

This allows custom config parameters to be added to the generated config
files, enabling the original intended functionality per
https://openwrt.org/docs/guide-user/services/ups/software.nut.

Example usage from /etc/config/nut_server:

config driver 'apc'
	option driver 'snmp-ups'
	option snmp_version 'v3'
	option port '172.16.100.5'
	list other 'secLevel'
	list other 'secName'
	list other 'authPassword'
	list otherflag 'notransferoids'

config other 'other_secLevel'
	option value 'authNoPriv'

config other 'other_secName'
	option value 'some_username'

config other 'other_authPassword'
	option value 'some_password'

config other 'otherflag_notransferoids'
	option value '1'

Signed-off-by: Matt Merhar <mattmerhar@protonmail.com>

net/nut/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nut
 PKG_VERSION:=2.7.4
-PKG_RELEASE:=19
+PKG_RELEASE:=20
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.networkupstools.org/source/2.7/

net/nut/files/nut-server.init

@@ -203,8 +203,8 @@ build_driver_config() {
 		fi
 	}
 
-	config_list_foreach "$cfg" other other
-	config_list_foreach "$cfg" other otherflag
+	config_list_foreach "$cfg" other other other
+	config_list_foreach "$cfg" otherflag other otherflag
 	echo "" >>$UPS_C
 	havedriver=1
 }