Exclude nginx from raven repo

install/hst-install-centos.sh

@@ -730,7 +730,7 @@ elif [ "$codename" = "rhel_8" ]; then
     # Raven-extras repo for mod_ruid2
     dnf install -y https://pkgs.dyn.su/el8/base/x86_64/raven-release-1.0-1.el8.noarch.rpm
     dnf config-manager --set-enabled raven-extras
-    
+    echo "exclude=nginx*" >> /etc/yum.repos.d/raven.repo
 
     # No webalizer, phpPgAdmin on CentOS 8 yet
     software=$(echo "$software" | sed -e "s/\bwebalizer\b/ /")