Syslog formatter

[dkarlovi]

First of, I know the Syslog handler exists.

The suggestion here is to create a Syslog formatter, which would allow using it without messing around with PHP's settings.

Use case:

• formatter is created and Symfony enables it by default in dev mode
• the format of the log file is by default recognized by various logging helpers like https://lnav.org/ without any configuration, super-charging the logging information
• the user (developer) gets great DX by default, using standard best-of-kind apps

Syslog seems like the most obvious choice since it's very widely supported, if there's another alternative, that also works.

[Seldaek]

Closed by #1689

[dkarlovi]

Yay! \o/ Created a Symfony bundle issue here: symfony/monolog-bundle#441