Newline immediately following the opening delimiter should be trimmed for multi-line literal strings

[zmoon]

Seems like it's only done for multi-line basic currently

Multi-line literal strings are surrounded by three single quotes on each side and allow newlines. Like literal strings, there is no escaping whatsoever. A newline immediately following the opening delimiter will be trimmed. All other content between the delimiters is interpreted as-is without modification.