Added OpenBSD support to getbirthday

fetch

@@ -1202,7 +1202,20 @@ getbirthday () {
         ;;
 
         *"BSD")
+            case "$distro" in
+                "OpenBSD")
+                    birthday="$(ls -alctT / | awk '/lost\+found/ {printf $6 " " $7 " " $9 " " $8}')"
+                ;;
+
+                "FreeBSD")
                     birthday="$(ls -alctT /etc/hostid | awk '{printf $6 " " $7 " " $9 " " $8}')"
+                ;;
+
+                *)
+                    birthday="Unknown"
+                ;;
+            esac
+
             date_cmd="$(date -j -f "%b %d %Y" "$birthday" "+%a %d %b %Y %l:%M %p")"
         ;;