py3: suppress the output of open() using `and None`
This patch suppresses the output of open() on Python 3 as it does not return any
output on Python 2.
This makes test-diffstat.t pass on Python 3.5
Differential Revision: https://phab.mercurial-scm.org/D3128
--- a/tests/test-diffstat.t Thu Apr 05 16:56:34 2018 +0530
+++ b/tests/test-diffstat.t Thu Apr 05 17:00:15 2018 +0530
@@ -35,7 +35,7 @@
$ hg ci -m appenda
- >>> open("c", "wb").write(b"\0")
+ >>> open("c", "wb").write(b"\0") and None
$ touch d
$ hg add c d
@@ -54,7 +54,7 @@
$ hg ci -m createb
- >>> open("file with spaces", "wb").write(b"\0")
+ >>> open("file with spaces", "wb").write(b"\0") and None
$ hg add "file with spaces"
Filename with spaces diffstat: