get the new hostname into syslog after changing the hostname

When I installed Ubuntu I named my computer "test". after the installation was finished, I renamed the hostname to somewhat nicer:

sudo hostname silversurfer

 and I added the hostname to /etc/hosts

But still even after a reboot, in syslog all messages are preceeded by "test":

tail -f /var/log/syslog
Feb 24 04:51:28 test ntpd[4598]: peers refreshed
Feb 24 04:51:28 test ntpd[4598]: Listening on routing socket on fd #24 for interface updates
...

My /etc/hosts/ looks like this:

127.0.0.1   localhost
127.0.1.1   test silversurfer

solution: 

the first hostname for 127.0.1.1 in /etc/hosts is mentioned in syslog, so you have to change:

 from:

127.0.0.1   localhost
127.0.1.1   test silversurfer

to: 

127.0.0.1   localhost
127.0.1.1   silversurfer test