# https://httpd.apache.org/docs/2.4/mod/core.html#errorlogformat
# There is no default value, Apache uses different built in function if
# ErrorLogFormat is not defined.
-#ErrorLogFormat "[%t] [%l] [pid\ %P] [client\ %a] [vhost\ %v] %M %m"
+#ErrorLogFormat "[%{u}t] [%m:%l] [pid\ %P] [client\ %a] [vhost\ %v] %M"
# LogLevel: Control the number of messages logged to the error_log.
# Possible values include: debug, info, notice, warn, error, crit,