n7 version 22.10.27 - a johnno update

[Marcus]

Note that 'str' has always worked for all variable types (numbers, strings, functions, tables and unset), and it still does. But if you use any of the optional parameters, the expression that you want a string representation of is first converted to a number (0 for everything but number and string). And implicit conversions to string always work like the one parameter version of 'str'.