opentracker: do not rewrite conf files

Signed-off-by: Alexander Ryzhov <openwrt@ryzhov-al.ru>

net/opentracker/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=opentracker
 PKG_VERSION:=20151211
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 PKG_REV:=ba25d2b2a84a31eac2956b71cb12b4b0748b35f5
 PKG_MAINTAINER:=Daniel Golle <daniel@makrotopia.org>
 PKG_LICENSE:=Beerware
@@ -76,6 +76,14 @@ ifeq ($(BUILD_VARIANT),ipv6)
   MAKE_FLAGS += FEATURES="-DWANT_V6"
 endif
 
+define Package/opentracker/conffiles
+/etc/opentracker.conf
+endef
+
+define Package/opentracker6/conffiles
+/etc/opentracker6.conf
+endef
+
 define Package/opentracker/install
 	$(INSTALL_DIR) $(1)/usr/bin
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/opentracker $(1)/usr/bin