Add rule for multi-line function declarations

Makes sense, I pushed the configuration change to validate the indentation of mulit-line function declaration.

Missing is the trailing comma validation for the last parameter, did not find anything in the upstream Squiz.Functions.MultiLineFunctionDeclaration sniff. Will open a new issue for that.

Created ✨ Validate trailing comma in multi-line function declaration Active .

Automatically closed - issue fixed for 2 weeks with no activity.