CC-3791: Media Monitor crash when there are media files with non-ascii name in watched folder

-move utf-8 locale check to bash

python_apps/pypo/airtime-playout

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e
 
 virtualenv_bin="/usr/lib/airtime/airtime_virtualenv/bin/"
 . ${virtualenv_bin}activate
@@ -12,6 +12,14 @@ pypo_script="pypocli.py"
 cd ${pypo_path}
 exec 2>&1
 
+set +e
+cat /etc/default/locale | grep -i "LANG=.*UTF-\?8"
+set -e
+if [ "$?" != "0" ]; then
+    echo "non UTF-8 default locale found in /etc/default/locale." > /var/log/airtime/pypo/error.log
+    exit 1
+fi
+
 export HOME="/var/tmp/airtime/pypo/"
 export PYTHONPATH=${api_client_path}:$PYTHONPATH
 export LC_ALL=`cat /etc/default/locale | grep "LANG=" | cut -d= -f2 | tr -d "\n\""`