Merge branch '3ac2f1bd-c3cc-445c-8cc6-6da2d9487a51' into 'master'
authorMark Hansen <mark@markhansen.co.nz>
Thu, 28 May 2020 10:56:39 +0000 (10:56 +0000)
committerMark Hansen <mark@markhansen.co.nz>
Thu, 28 May 2020 10:56:39 +0000 (10:56 +0000)
use Python 3 compatible syntax in autotools check

Closes #1626

See merge request graphviz/graphviz!1373


Trivial merge