Add missing tests to tests/opr/.gitignore

dict-t and fmt-t were missing.

While here, sort the existing entries.

Change-Id: If62e0f9f93f4d51900cdd7747beede561861f51e
Reviewed-on: http://gerrit.openafs.org/11454
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>