system - recognise Elementary OS Odin - fixes #3388

It was reported that Elementary OS Odin identifies as "Elementary" rather than "elementary" via
lsb_release so switch to using "[eE]lementary" in case statement to recognise both.

This doesn't guarantee modules will work as this isn't a distro we test on ourselves.

Author: joolswills

scriptmodules/system.sh

@@ -275,7 +275,7 @@ function get_os_version() {
             fi
             __os_debian_ver="9"
             ;;
-        elementary)
+        [eE]lementary)
             if compareVersions "$__os_release" lt 0.4; then
                 error="You need Elementary OS 0.4 or newer"
             elif compareVersions "$__os_release" eq 0.4; then