package/ding-libs: adjust version variable

This package uses dashes as the version separator while
release-monitoring uses dots. As the <pkg>_VERSION is used to match
against release-monitoring, this patch changes the version variable to
use dots instead.

Signed-off-by: Victor Huesca <victor.huesca@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ding-libs/ding-libs.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-DING_LIBS_VERSION = 0_4_0
-DING_LIBS_SOURCE = ding_libs-$(DING_LIBS_VERSION).tar.xz
+DING_LIBS_VERSION = 0.4.0
+DING_LIBS_SOURCE = ding_libs-$(subst .,_,$(DING_LIBS_VERSION)).tar.xz
 DING_LIBS_SITE = https://git.fedorahosted.org/cgit/ding-libs.git/snapshot
 DING_LIBS_DEPENDENCIES = host-pkgconf \
 	$(TARGET_NLS_DEPENDENCIES) \