Bug#710380: [reporting/harness]: off-by-one in splicing of worklist causing some groups to be processed twice

[Niels Thykier <niels@thykier.net>]

Package: lintian
Version: 2.5.11
Severity: normal

harness.log:
"""
[...]
Running Lintian (round 2/124) ...
 - cmd: /srv/lintian.debian.org/root/frontend/lintian [...]
 - Range: GROUP:aggregate/1.6-7 ... GROUP:apache2/2.4.4-3
Running Lintian (round 3/124) ...
 - cmd: /srv/lintian.debian.org/root/frontend/lintian [...]
 - Range: GROUP:apache2/2.4.4-3 ... GROUP:aspectj/1.6.12+dfsg-3
[...]
"""

$ grep apache2/2.4.4-3 logs/lintian.log
N: Unpacking packages in group apache2/2.4.4-3
N: Unpacking packages in group apache2/2.4.4-3

~Niels