From: Nick Bowler <nbowler@draconx.ca>
Date: Fri, 14 Jun 2013 01:16:36 +0000 (-0400)
Subject: lbximg: Push no-palette mode down into the PNG writer.
X-Git-Url: http://git.draconx.ca/gitweb/liblbx.git/commitdiff_plain/4ec9360786d0bb19cffc76818c1a4c33043f68e1?hp=4ec9360786d0bb19cffc76818c1a4c33043f68e1

lbximg: Push no-palette mode down into the PNG writer.

This allows the writer to select the most appropriate output format to
support this mode.  Switch the PNG writer to emit true grayscale images
in this case.
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