From: marshmellow42 <marshmellowrf@gmail.com>
Date: Tue, 23 Jun 2015 16:16:23 +0000 (-0400)
Subject: fix bug in pskdemod return value if no samples...
X-Git-Tag: v2.2.0~13^2^2
X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/commitdiff_plain/2ec87733142000646c7ce86c74f61330f451b110?hp=2ec87733142000646c7ce86c74f61330f451b110

fix bug in pskdemod return value if no samples...

... caused crash in data psknexwatchdemod if no samples were in the
graphbuffer.
also fixed hf mfu wrbl and rdbl to allow printing of help without a tag
being present.
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