ucf --purge reaches code where basename doesn't have a parameter

[shemgp]

When I was clearing up unpurged packages, grub-pc was not being purged because of an error "basename: missing operand". Looked at the code and "ucf --purge /etc/default/grub" was bailing out at line 472, which has the code:
    old_mdsum_file="$source_dir/$(basename ${new_file}).md5sum";
Looking at ${new_file} at the code above, sure enough, it wasn't being initialized at purge (line numbers 349 - 374). So I changed the else to test if $new_file was there and I was able to purge grub-pc.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ucf 3.0032 [modified: usr/bin/ucf]
ProcVersionSignature: Ubuntu 4.3.0-6.17-generic 4.3.3
Uname: Linux 4.3.0-6-generic x86_64
ApportVersion: 2.19.3-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Jan 25 21:08:03 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-09-28 (118 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
SourcePackage: ucf
UpgradeStatus: Upgraded to xenial on 2016-01-06 (18 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "ucf_make-purge-grub-pc-work.diff" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

[Paul Gevers (paul-climbing)]

Isn't this fixed in 3.0033 in commit: http://anonscm.debian.org/cgit/users/srivasta/debian/ucf.git/commit/?id=599bdf9413ecd06ea18ed02e58d8fcac0bda4bd3

[Paul Gevers (paul-climbing)]

Fixed released as per previous comment.

[Paul White (paulw2u)]

Closing as all other bug tasks showing "Fix Released"