Merge pull request #4794 from pi-hole/fix/mkdir_always

Always create log directory if it doesn't exist

automated install/basic-install.sh

@@ -2796,6 +2796,11 @@ main() {
 
     stop_service pihole-FTL &> /dev/null
 
+    if [ -d /var/log/pihole/ ]; then
+        mkdir /var/log/pihole/
+        chmod 0775 /var/log/pihole/
+    fi
+
     # Special handling for pihole-FTL.log -> pihole/FTL.log
     if [ -f /var/log/pihole-FTL.log ] && [ ! -L /var/log/pihole-FTL.log ]; then
         # /var/log/pihole-FTL.log      -> /var/log/pihole/FTL.log