mtpfs fails to mount MTP device

[Karl-Philipp Richter]

`mtpfs -o allow_other /media/motog/` with a Motorola Moto G doesn't have any effect (prints `Listing File Information on Device with name: (NULL)`, returns with code 0, but `apport` reports failure).

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: mtpfs 1.1-5
ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0
Uname: Linux 4.8.0-26-generic x86_64
NonfreeKernelModules: openafs zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Oct 27 11:03:36 2016
InstallationDate: Installed on 2015-12-12 (319 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: mtpfs
UpgradeStatus: Upgraded to yakkety on 2016-10-17 (9 days ago)