[Bug 1824688] Re: date+%-Y -d "- N years" errors when N > 111

[O. Emmerson]

Thanks for the testing C de-Avillez.

Here's the output of debug:

$ date +%-Y -d "- 112 years" --debug
date: parsed relative part: -112 year(s)
date: input timezone: system default
date: using current time as starting value: '20:47:40'
date: using current date as starting value: '(Y-M-D) 2019-04-15'
date: starting date/time: '(Y-M-D) 2019-04-15 20:47:40'
date: error: adding relative date resulted in an invalid date: '(Y-M-D) 1907-04-15 20:47:40'
date: invalid date ‘- 112 years’

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Title:
  date+%-Y -d "- N years" errors when N > 111

Status in coreutils package in Ubuntu:
  New

Bug description:
  I have been using 'date +%-Y -d "- 2010 years" in a script for years
  but today after using the script after upgrading to disco it has
  failed.

  After some experimentation it succeeds with upto 111 years but fails
  from 112 onwards.

  Error given is:

  'date: invalid date '- 112 years'.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: coreutils 8.30-1ubuntu1
  ProcVersionSignature: Ubuntu 5.0.0-11.12-generic 5.0.6
  Uname: Linux 5.0.0-11-generic x86_64
  ApportVersion: 2.20.10-0ubuntu27
  Architecture: amd64
  Date: Sun Apr 14 10:59:36 2019
  InstallationDate: Installed on 2017-10-08 (553 days ago)
  InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
  SourcePackage: coreutils
  UpgradeStatus: Upgraded to disco on 2019-04-13 (1 days ago)

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