/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/ is in fusionforge-plugin-scmhook 6.0.3+20151023-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/checklog/
/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/checklog/check-log.sh
/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/checkmimetype/
/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/checkmimetype/check-mime-type.pl
/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/commitemail/
/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/commitemail/commit-email.php
/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/commitemail/commit-email.pl
/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/committracker/
/usr/share/fusionforge/plugins/scmhook/library/scmsvn/hooks/committracker/post.php