Borgmatic

* 210: Support for Borg check --verify-data flag via borgmatic "data" consistency check.
* 210: Override configured consistency checks via "borgmatic check --only" command-line flag.
* When generating sample configuration with generate-borgmatic-config, add a space after each ""
comment indicator.

* 208: Fix for traceback when the "checks" option has an empty value.
* 209: Bypass Borg error about a moved repository via "relocated_repo_access_is_ok" option in
borgmatic storage configuration section.
* 213: Reorder arguments passed to Borg to fix duplicate directories when using Borg patterns.
* 214: Fix for hook erroring with exit code 1 not being interpreted as an error.

* 204: Do not treat Borg warnings (exit code 1) as failures.
* When validating configuration files, require strings instead of allowing any scalar type.

* 199: Add note to documentation about using spaces instead of tabs for indentation, as YAML does
not allow tabs.
* 203: Fix compatibility with ruamel.yaml 0.16.x.
* If a "prefix" option in borgmatic's configuration has an empty value (blank or ""), then disable
default prefix.

* Only log to syslog when run from a non-interactive console (e.g. a cron job).
* Remove unicode byte order mark from syslog output so it doesn't show up as a literal in rsyslog
output. See discussion on 197.

* 193: Pass through several "borg list" and "borg info" flags like --short, --format, --sort-by,
--first, --last, etc. via borgmatic command-line flags.
* Add borgmatic info --repository and --archive command-line flags to display info for individual
repositories or archives.
* Support for Borg --noatime, --noctime, and --nobirthtime flags via corresponding options in
borgmatic configuration location section.