apostrophe's appeared in shell around filenames after upgrade

[browe]

After upgrading to 18.04 from 17.10, many but not all filenames suddenly have apostrophes around the name when viewed in terminal from an ls command in a directory. When using the gnome finder to view files, the apostrophes do not appear. They look to be present around all filenames that have spaces in the name.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome (not installed)
ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
Uname: Linux 4.15.0-22-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.9-0ubuntu7.1
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Jun 6 13:12:44 2018
InstallationDate: Installed on 2014-01-18 (1599 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: meta-gnome3
UpgradeStatus: Upgraded to bionic on 2018-05-23 (13 days ago)