Function builtin_strtrim 

fn builtin_strtrim(
    args: &[RValue],
    _: &[(String, RValue)],
) -> Result<RValue, RError>

Trim character strings to a specified display width.

Truncates each string to at most width display columns. Multi-byte characters and wide characters (CJK) are measured by their terminal width.

@param x character vector @param width integer vector of maximum widths (recycled) @return character vector of trimmed strings