Use $PATH for echo instead of complete path (dependent on distrbutions)

monitoring/altinea_monitoring_request.sh

@@ -71,10 +71,10 @@ IFS= read -r mailpassword
 stty echo
 printf "\n"
 
-AUTHLOGIN=`/usr/bin/echo -ne "\0sendmail@it-nea.eu\0$mailpassword"|base64`
+AUTHLOGIN=`echo -ne "\0sendmail@it-nea.eu\0$mailpassword"|base64`
 
 # Generate first part on the command
-/usr/bin/echo "ehlo `hostname -f`
+echo "ehlo `hostname -f`
 AUTH PLAIN
 $AUTHLOGIN
 MAIL FROM: noc@altinea.fr