Change Logging mechanism.

optimize_mysql_tables-ND.sh

@@ -1,6 +1,12 @@
 #!/usr/bin/env bash
 
-LOGGING=false
+if [[ -t 1 ]] ; then
+      terminal=true
+      LOGGING=true
+else
+   terminal=false
+   LOGGING=false
+fi
 
 mysql=`which mysql`