scripts/mk: Use new dpkg-parsechangelog -S option instead of sed or awk

scripts/mk/pkg-info.mk

@@ -9,9 +9,9 @@
 
 dpkg_late_eval ?= $(or $(value DPKG_CACHE_$(1)),$(eval DPKG_CACHE_$(1) := $(shell $(2)))$(value DPKG_CACHE_$(1)))
 
-DEB_SOURCE = $(call dpkg_late_eval,DEB_SOURCE,awk '/^Source: / { print $$2 }' debian/control)
-DEB_VERSION = $(call dpkg_late_eval,DEB_VERSION,dpkg-parsechangelog | awk '/^Version: / { print $$2 }')
+DEB_SOURCE = $(call dpkg_late_eval,DEB_SOURCE,dpkg-parsechangelog -S Source)
+DEB_VERSION = $(call dpkg_late_eval,DEB_VERSION,dpkg-parsechangelog -S Version)
 DEB_VERSION_EPOCH_UPSTREAM = $(call dpkg_late_eval,DEB_VERSION_EPOCH_UPSTREAM,echo '$(DEB_VERSION)' | sed -e 's/-[^-]*$$//')
 DEB_VERSION_UPSTREAM_REVISION = $(call dpkg_late_eval,DEB_VERSION_UPSTREAM_REVISION,echo '$(DEB_VERSION)' | sed -e 's/^[0-9]*://')
 DEB_VERSION_UPSTREAM = $(call dpkg_late_eval,DEB_VERSION_UPSTREAM,echo '$(DEB_VERSION_EPOCH_UPSTREAM)' | sed -e 's/^[0-9]*://')
-DEB_DISTRIBUTION = $(call dpkg_late_eval,DEB_DISTRIBUTION,dpkg-parsechangelog | sed -n -e 's/^Distribution: //p')
+DEB_DISTRIBUTION = $(call dpkg_late_eval,DEB_DISTRIBUTION,dpkg-parsechangelog -S Distribution)