getDefaultFormatter

Returns the singleton default log message formatter. This formats log messages in the form:

Log message [CONTEXT key="value" id=42 ]

with context from the log data and scope, merged together in a sequence of key/value pairs after the formatted message. If the log message is long or multi-line, then the context suffix will be formatted on a single separate line.

The cause is omitted from the context section, since it's handled separately by most logger backends and not considered part of the formatted message. Other internal metadata keys may also be suppressed.