From: Nick Bowler <nbowler@draconx.ca>
Date: Thu, 25 Jan 2018 00:29:52 +0000 (-0500)
Subject: Fix underquoting issue in DX_DO.
X-Git-Url: https://git.draconx.ca/gitweb/dxcommon.git/commitdiff_plain/2e73a3913ac0e08253254477c444aeeb1b815943?hp=2e73a3913ac0e08253254477c444aeeb1b815943

Fix underquoting issue in DX_DO.

The m4_map macro takes a "quoted list of argument descriptions ...
[which are] in turn a quoted list of quoted elements, suitable for
m4_apply."  This is not what actually is being passed in DX_DO,
which is underquoted resulting in various problems.

Add a test case to expose this issue, and switch DX_DO to use
m4_map_args which is a better fit.

Thanks to Eric Blake.
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