d/rules: fix misspelled changelog date variable

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

diff --git a/debian/rules b/debian/rules
index 1d0d6158d297b23f013e85768ac027060813626a..d81d35e47bf63c812cab24dc701ba39bc6a1c497 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -12,7 +12,7 @@ include debian/rules.d/env.mk
 include debian/rules.d/${DEB_BUILD_ARCH}.mk
 
 CHANGELOG_DATE:=$(shell dpkg-parsechangelog -SDate)
-CHANGELOG_DATE_UTC_ISO := $(shell date -u -d '$(SOURCE_DATE)' +%Y-%m-%dT%H:%MZ)
+CHANGELOG_DATE_UTC_ISO := $(shell date -u -d '$(CHANGELOG_DATE)' +%Y-%m-%dT%H:%MZ)
 
 PVE_KERNEL_PKG=pve-kernel-${KVNAME}
 PVE_DEBUG_KERNEL_PKG=pve-kernel-${KVNAME}-dbgsym