Previously, this would blindly continue to attempt to connect, and
that's a lot of extra load as in the recent case of the ApplicationId
being disabled on the MSN servers.
#!/bin/sh
METHOD_NAME=$1
iftest-z"$METHOD_NAME"
then
cat<<EOF
This program calls purple API functions using DBus and prints the return value.
If you are not interested in the return value, use purple-send-async.