[PATCH 0/1] MR10819: vbscript: Handle Null operands in Left().

[Francis De Brabandere (＠francisdb)]

Native VBScript propagates Null through the string operand of Left()
and raises error 94 (illegal Null use) when the length operand is Null.
Wine's Right() already does this; bring Left() in line.

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10819