Bug 17642: [QA Follow-up] Issues_stats.pl is not plack safe

Bug 17642: [QA Follow-up] Issues_stats.pl is not plack safe

Resolve:
Variable "$ccodes" is not available at reports/issues_stats.pl line 358.
Variable "$locations" is not available at reports/issues_stats.pl line 359.
Variable "$ccodes" is not available at reports/issues_stats.pl line 358.
Variable "$locations" is not available at reports/issues_stats.pl line 359.

Test plan:
Run the script. Choose Collection or Shelving Location.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>