find-german-comments -l crashed for a too long path name

In calculating how many tabs to use for the display,
when the path was more than 40 characters (like for
dbaccess/source/ui/relationdesign/RelationTableView.cxx)
it returned '1, 0' for the number of tabs --
and python didn't like that. Return 1 instead.

Change-Id: If370ffe03b4aff67ca59094dd38863986ca39519
Reviewed-on: https://gerrit.libreoffice.org/9239
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>
Tested-by: Michael Meeks <michael.meeks@collabora.com>