[gnome-logs/wip/test] Use killall in place of --force shutdown in environment.py

[Rashi Aswani <aswanirashi src gnome org>]

commit 082ff961608afc342c08179a83672af61998cf24
Author: Rashi Aswani <aswanirashi19 gmail com>
Date:   Fri Aug 28 20:04:34 2015 +0530

    Use killall in place of --force shutdown in environment.py

 tests/environment.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tests/environment.py b/tests/environment.py
index a5d8172..4f84fa6 100644
--- a/tests/environment.py
+++ b/tests/environment.py
@@ -16,7 +16,7 @@ def before_all(context):
 
     try:
         # Close running logs instances
-        os.system("./gnome-logs-behave-test --force-shutdown > /dev/null")
+        os.system("killall gnome-logs-behave-tests")
 
         # Skip dogtail actions to print to stdout
         config.logDebugToStdOut = False