[pitivi] tests_: Use nosetest3 binary if available instead of Python 2.x nosetest

[Thibault Saunier <tsaunier src gnome org>]

commit 4f4264f3c80ef09395d9af00013d364929434e3e
Author: Sebastian Dröge <sebastian centricular com>
Date:   Tue Aug 9 08:46:01 2016 +0000

    tests_: Use nosetest3 binary if available instead of Python 2.x nosetest
    
    Some distros install the Python 3 version as nosetests3, some as nosetests.
    
    https://phabricator.freedesktop.org/T7538
    
    Reviewed-by: Thibault Saunier <tsaunier gnome org>
    Differential Revision: https://phabricator.freedesktop.org/D1263

 tests/meson.build |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/tests/meson.build b/tests/meson.build
index c3a2484..02d92ae 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -1,4 +1,8 @@
-runtests = find_program('nosetests')
+runtests = find_program('nosetests3', required : false)
+# On some distros it doesn't have the '3' suffix
+if not runtests.found()
+    runtests = find_program('nosetests')
+endif
 
 testdir = '@0@'.format(meson.current_source_dir())