gui: Prefer NULL to 0 for initializing pointers.
authorBen Pfaff <blp@cs.stanford.edu>
Wed, 8 Sep 2010 04:51:03 +0000 (21:51 -0700)
committerBen Pfaff <blp@cs.stanford.edu>
Tue, 3 May 2011 14:52:49 +0000 (07:52 -0700)
Using NULL instead of 0 is better modern C style.


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