Some log levels for mythbackend_log are invalid

[elyscape]

mythbackend.json has some invalid log levels, which causes some issues, such as a bunch of errors being dumped to stderr every time LNAV is run, regardless of whether the format is even being used:

$ lnav
warning:mythbackend.json:/mythbackend_log/level/config <message-regex> -- The regular expression to match a log message and capture fields.
warning:mythbackend.json:/mythbackend_log/level/config:line 0:unexpected data, expecting one of the following data types --
warning:mythbackend.json:/mythbackend_log/level/config:accepted paths --
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/regex/[^/]+/
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/(json|convert-to-local-time|hide-extra|multiline)
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/timestamp-divisor
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/(file-pattern|level-field|timestamp-field|body-field|url|url#|title|description|timestamp-format#|module-field|opid-field)$
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/level/(trace|debug\d*|info|stats|warning|error|critical|fatal)
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/value/.+/(kind|collate|unit/field)$
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/value/.+/(identifier|foreign-key|hidden)$
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/value/.+/unit/scaling-factor/.*$
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/value/.+/action-list#
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/action/[^/]+/label
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/action/[^/]+/capture-output
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/action/[^/]+/cmd#
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/sample#/line
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/line-format#/(field|default-value)
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/line-format#/min-width
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/line-format#
warning:mythbackend.json:/mythbackend_log/level/config:  /\w+/search-table/.+/pattern
warning:mythbackend.json:/mythbackend_log/level/information:line 0:unexpected data, expecting one of the following data types --
warning:mythbackend.json:/mythbackend_log/level/information:accepted paths --
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/regex/[^/]+/
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/(json|convert-to-local-time|hide-extra|multiline)
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/timestamp-divisor
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/(file-pattern|level-field|timestamp-field|body-field|url|url#|title|description|timestamp-format#|module-field|opid-field)$
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/level/(trace|debug\d*|info|stats|warning|error|critical|fatal)
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/value/.+/(kind|collate|unit/field)$
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/value/.+/(identifier|foreign-key|hidden)$
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/value/.+/unit/scaling-factor/.*$
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/value/.+/action-list#
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/action/[^/]+/label
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/action/[^/]+/capture-output
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/action/[^/]+/cmd#
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/sample#/line
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/line-format#/(field|default-value)
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/line-format#/min-width
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/line-format#
warning:mythbackend.json:/mythbackend_log/level/information:  /\w+/search-table/.+/pattern
warning:mythbackend.json:/mythbackend_log/level/notice:line 0:unexpected data, expecting one of the following data types --
warning:mythbackend.json:/mythbackend_log/level/notice:accepted paths --
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/regex/[^/]+/
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/(json|convert-to-local-time|hide-extra|multiline)
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/timestamp-divisor
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/(file-pattern|level-field|timestamp-field|body-field|url|url#|title|description|timestamp-format#|module-field|opid-field)$
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/level/(trace|debug\d*|info|stats|warning|error|critical|fatal)
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/value/.+/(kind|collate|unit/field)$
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/value/.+/(identifier|foreign-key|hidden)$
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/value/.+/unit/scaling-factor/.*$
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/value/.+/action-list#
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/action/[^/]+/label
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/action/[^/]+/capture-output
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/action/[^/]+/cmd#
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/sample#/line
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/line-format#/(field|default-value)
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/line-format#/min-width
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/line-format#
warning:mythbackend.json:/mythbackend_log/level/notice:  /\w+/search-table/.+/pattern

Specifically, the issues are with the the levels config, information, and notice, none of which are recognized by LNAV. In addition to spitting out a bunch of error messages to stderr on launch, it doesn't know how to categorize those lines and defaults them to info (which is a bug with LNAV, as it should be unknown; see tstack/lnav#329 for more on that).

It does recognize info, so changing information to info would deal with that part of the issue. As for the others, I recommend either consolidating them into info (e.g. with "info": "I|N|C") or using the various new debug2-5 levels. The downside to the latter option is that those levels require the as-yet-unreleased 0.8.1 version of LNAV in order for them to work.

Also, the regular expression for the level ((?<level>[CEINW])) doesn't match against D for debug. This could be remedied either by adding D to the character class or by changing the expression to match any single word character (i.e. (?<level>\\w)).