nut: Fix a typo in setting a driver parameter

synchronous would not get set due to typo.  Fixed.

Signed-off-by: Daniel F. Dickinson <cshored@thecshore.com>

net/nut/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nut
 PKG_VERSION:=2.7.4
-PKG_RELEASE:=9
+PKG_RELEASE:=10
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.networkupstools.org/source/2.7/

net/nut/files/nut-server.init

@@ -210,7 +210,7 @@ build_global_driver_config() {
 	get_write_driver_config "$cfg" maxretry
 	get_write_driver_config "$cfg" retrydelay
 	get_write_driver_config "$cfg" pollinterval
-	get_write_dirver_config "$cfg" synchronous
+	get_write_driver_config "$cfg" synchronous
 	config_get runas "$cfg" user "nut"
 	RUNAS="$runas"