dhcp-forwarder: use Savannah download alias, remove conffiles indent

Minor tweaks to the new package:
* Use the SAVANNAH download alias
* Remove indentation from conffiles

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

net/dhcp-forwarder/Makefile

@@ -11,7 +11,7 @@ PKG_NAME:=dhcp-forwarder
 PKG_VERSION:=0.11
 PKG_RELEASE:=1
 
-PKG_SOURCE_URL:=http://savannah.nongnu.org/download/dhcp-fwd/
+PKG_SOURCE_URL:=@SAVANNAH/dhcp-fwd/
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_MD5SUM:=9d1ea7939fef93ae7d7caef43397a908
 
@@ -51,7 +51,7 @@ define Package/dhcp-forwarder/description
 endef
 
 define Package/dhcp-forwarder/conffiles
-  /etc/dhcp-fwd.conf
+/etc/dhcp-fwd.conf
 endef
 
 CONFIGURE_ARGS += \