Added check for user

This script should be run with superuser privileges. This commit adds a check for the effective user id to the beginning of the script (before -e being set).

All this change does is adding a little improvement to the UX.

syslog-collector-installer.sh

 #!/bin/bash
 
+
+# This script requires root privileges
+if [[ $EUID -ne 0 ]]; then
+	echo "Root privileges required to run this script!"
+	exit 1
+fi
+
+
 # halt on error
 set -e