package grub-pc 2.02~beta2-36ubuntu3.10 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[Radim]

radim@sbasus2011r:~$ sudo apt -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up grub-pc (2.02~beta2-36ubuntu3.10) ...
/var/lib/dpkg/info/grub-pc.postinst: line 703: syntax error near unexpected token `fi'
dpkg: error processing package grub-pc (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 grub-pc
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: grub-pc 2.02~beta2-36ubuntu3.10
ProcVersionSignature: Ubuntu 4.4.0-79.100-generic 4.4.67
Uname: Linux 4.4.0-79-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2.6
Architecture: amd64
Date: Sat May 20 12:28:02 2017
DuplicateSignature:
 package:grub-pc:2.02~beta2-36ubuntu3.10
 Setting up grub-pc (2.02~beta2-36ubuntu3.10) ...
 /var/lib/dpkg/info/grub-pc.postinst: line 703: syntax error near unexpected token `fi'
 dpkg: error processing package grub-pc (--configure):
  subprocess installed post-installation script returned error exit status 2
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationDate: Installed on 2013-11-11 (1285 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-79-generic root=UUID=399d52c1-8d50-4bc4-ac01-60de3767d9b1 ro quiet splash
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.20
SourcePackage: grub2
Title: package grub-pc 2.02~beta2-36ubuntu3.10 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: Upgraded to xenial on 2016-08-14 (278 days ago)

[AlcaCoop (alcacoop)]

missing semicolon on line 699, this is the fix:

- if dpkg --compare-versions "$2" lt-nl 2.02~beta2-36ubuntu3.10 then
+ if dpkg --compare-versions "$2" lt-nl 2.02~beta2-36ubuntu3.10; then

[Launchpad Janitor (janitor)]

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