Bug 13521: Add missing semicolon

Bug 13521: Add missing semicolon

Add a missing semicolon to the end of a template variable assignment
line. This patch should not affect operation.

Note: With Bug 13499 we did a non-destructive perltidy, as such we only
affected indenting and whitespace to maintain blame history. However, a
number of minor code issues were also highlighted, in this series of
patches I hope to correct other minor style issues.

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Mason James <mtj@kohaaloha.com>
(cherry picked from commit e27969c5028211298bc4006013c0ae184d80ff5d)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>