Move conf to correct file, add some comments so we get it right.

conf/sync2build-gittags-denylist.txt

@@ -1,4 +1,6 @@
-# If we want to filter any git tags, we can do it here:
+# If we want to filter any git tags, we can do it here. Use this to filter
+# specific NVRs from being built.
+
 nvr=virt-who-1.29.3-1.el8
 # These keep failing...
 nvr=libblockdev-2.24-3.el8
@@ -10,6 +12,16 @@ nvr=samba-4.13.2-2.el8
 nvr=spirv-tools-2020.5-2.20201031.gitf7da527.el8
 nvr=sssd-2.4.0-2.el8
 
+# Newer do not ship ...
+# 2020-11-18, rhbz#1891906
+nvr=freetype-2.9.1-5.el8
+# 2020-09-28, rhbz#1588626
+nvr=liblouis-2.6.2-22.el8
+# 2020-10-29, rhbz#1846152
+nvr=mingw-openssl-1.0.2k-3.el8
+# rhbz#1840793
+nvr=librevenge-0.0.4-13.el8
+
 # We also automatically filter:
 #  Bracnhed builds:
 # rel=*el8_*

conf/sync2build-packages-denylist.txt

@@ -1,4 +1,5 @@
-# Packages that we don't auto build
+# Packages that we don't auto build. This filters from the koji side.
+# For NVRs you almost certainly want to filter in the gittags deny file.
 
 # Branding
 abrt
@@ -48,12 +49,3 @@ rhc-worker-playbook
 rhel-system-roles-sap
 sap-cluster-connector
 
-# Newer do not ship ...
-# 2020-11-18, rhbz#1891906
-nvr=freetype-2.9.1-5.el8
-# 2020-09-28, rhbz#1588626
-nvr=liblouis-2.6.2-22.el8
-# 2020-10-29, rhbz#1846152
-nvr=mingw-openssl-1.0.2k-3.el8
-# rhbz#1840793
-nvr=librevenge-0.0.4-13.el8