tree 28feaf0a47eef3165c49b4ddbb1563aabb01ac68
parent bb0c497580e4ae2a20655af7d8557573bdaef776
author Mark Adler <git@madler.net> 1775427244 -0700
committer Mark Adler <git@madler.net> 1780305087 -0700

Avoid undefined behavior in gzwrite.c.

Adding to NULL is undefined.