Bug#528076: file overwrite conflict during postinst

[Alex Goebel]

Package: linphone
Version: 3.1.2-1

Installation doesn't finish without error:

Unpacking linphone (from .../linphone_3.1.2-1_amd64.deb) ...
dpkg: error processing
/var/cache/apt/archives/linphone_3.1.2-1_amd64.deb (--unpack):
 trying to overwrite `/usr/share/pixmaps/linphone/linphone2.xpm',
which is also in package linphone-common