borgmatic 1.7.5

• #311: Override PostgreSQL dump/restore commands via configuration options.
• #604: Fix traceback when a configuration section is present but lacking any options.
• #607: Clarify documentation examples for include merging and deep merging.
• #611: Fix "data" consistency check to support "check_last" and consistency "prefix" options.
• #613: Clarify documentation about multiple repositories and separate configuration files.