+# $3 is the password with which to access the database or "" if no password
+# (default ""). WARNING!!! Passing the password via the command line is
+# insecure and should not be used since any user can display the command
+# line arguments and the environment using ps. Please consult your
+# MySQL or PostgreSQL manual for secure methods of specifying the
+# password.
+# $4 is the host on which the database is located
+# (default "")