winspool: (fixes bug #3589) Result of EnumPrinterDrivers points to unallocated memory

Sat Oct 15 05:11:48 CDT 2005

The bug is in GetStringFromReg when the ValueName is present in the
Registry, but the Value is empty:
No space is reserved for the terminating zero.

The internal Function is used to fill strings in PRINTER_INFO_* and
DRIVER_INFO_* from the Registry.

EnumPrinters is not affected, because AddPrinter has set a Value for the
relevant Strings.

Changelog:
 - Reserve space for the terminating zero, when the String-Value
   in the Registry is empty (fixes bug #3589)

-- 
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      ... Detlef
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