✨ New Universal.Attributes.TrailingComma sniff
#413
Merged
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New sniff to require a trailing comma for multi-line, multi-attribute attribute blocks and forbid trailing commas in single-line attribute blocks and multi-line attributes containing only a single attribute.
While trailing commas is not covered by PERCS, this sniff as proposed does not conflict with the expectations of PERCS.
Includes fixer.
Includes metrics.
Includes unit tests.
Includes documentation.
Fixes #397