shiro@stan:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Setting up xserver-common-lts-raring (3:5) ...
Removing 'diversion of /usr/lib/xorg/protocol.txt to /usr/lib/xorg/protocol-precise.txt by xserver-common-lts-raring'
dpkg-divert: error: rename involves overwriting `/usr/lib/xorg/protocol.txt' with
  different file `/usr/lib/xorg/protocol-precise.txt', not allowed
dpkg: error processing package xserver-common-lts-raring (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 xserver-common-lts-raring
E: Sub-process /usr/bin/dpkg returned an error code (1)
shiro@stan:~$