Sebastian Spaeth 248f23afd6 Do not fail calling dequote() with empty string
A report by Dave Abrahams showed that the dequote() function failed when
invoked with an empty string. This fixes the function to be more robust.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-26 15:16:59 +02:00
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