Remove trailing whitespace from default /etc/lvm/lvm.conf

I'm managing configuration files in a template system which enforces incorporating changes in the file to the template. The trailing space after each distribution upgrade are annoying for that and don't serve a purpose.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: lvm2 2.02.160-1ubuntu1
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
Date: Mon Oct 31 00:37:26 2016
InstallationDate: Installed on 2015-04-20 (559 days ago)
InstallationMedia: Ubuntu-Server 14.10 "Utopic Unicorn" - Release amd64 (20141022.2)
ProcEnviron:
 TERM=screen.xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: lvm2
UpgradeStatus: Upgraded to yakkety on 2016-10-19 (11 days ago)
modified.conffile..etc.lvm.lvm.conf: [modified]
mtime.conffile..etc.lvm.lvm.conf: 2016-10-31T00:36:23.777884