Minor fix in output: Do not display error messages on stdout.

check_modules.sh

@@ -25,7 +25,7 @@ for m in $(module av -t 2>&1); do
         else 
             echo "failed" | tee -a $logfile
             failed_modules=(${failed_modules[@]} $m)
-            cat .module_load.log | tee -a $logfile
+            cat $module_load_logfile >> $logfile
         fi
         module purge 2>/dev/null
         rm -f $module_load_logfile