diagnostics: updater module read /tmp/updater_crash.log

diagnostics/modules/updater.module

 #!modules/module.sh
 
 help="
-try to run updater
+try to run updater and read /tmp/updater_crash.log
 "
 
 run () {
 	updater.sh -n
+	echo
+	local CRASH_LOG="/tmp/updater_crash.log"
+	if [ -e "$CRASH_LOG" ]; then
+		cat "$CRASH_LOG"
+	else
+		echo "No updater crashlog file ($CRASH_LOG)"
+	fi
 }