https://gitlab.synchro.net/main/sbbs/-/commit/52460c3abc163308c7be1c62
Modified Files:
	src/sbbs3/js_bbs.cpp
Log Message:
Range check argc before deref of argv[1]

Apparently JSVAL_IS_STRING() can return true even when argv[1] is out of range
(I guess I assumed it'd alwasy be NULL or VOID/undefined) and this can lead to
crash when calling JS_ValueToString() on it.
--- SBBSecho 3.23-Linux