Installing with `make install` automatically places the ddclient
executable in `/usr/bin/ddclient`. This service file has the wrong
path and that causes systemd to be unable to start ddclient.
Preparing a complete move to git. The Id tag isn't useful so removing from
the files seemed to be the best solotion
git-svn-id: svn+ssh://svn.code.sf.net/p/ddclient/code/trunk@186 3873ddee-7413-0410-b6c4-c2c57c1ab35a
