Use list.extend instead of operator +=

The difference between list.extend and list.operator+= is that the
later creates a new object while the former mutates the original object
in place.

Signed-off-by: Olivier Gayot <olivier.gayot@sigexec.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/monitor-menu.py b/monitor-menu.py
index 4aeec25..ecd70a5 100755
--- a/monitor-menu.py
+++ b/monitor-menu.py
@@ -32,12 +32,12 @@ class MonitorMenu():
         cmd = ['xrandr']
 
         try:
-            cmd += profile['xrandr-opts']
+            cmd.extend(profile['xrandr-opts'])
         except KeyError:
             pass
 
         for monitor in profile['monitors']:
-            cmd += monitor['xrandr-opts']
+            cmd.extend(monitor['xrandr-opts'])
 
         subprocess.run(cmd)