- Use %license instead of %doc for license files on newer products.
- Fix bash completion path.

- Updated from 2.3.2 to 2.5.2
- Fix security issues for incorrect access control on systems
supporting overlay file system descirbed in CVE-2018-12021 and
bsc#1100333
Highlights of 2.5.2
* a new `build` command was added to replace `create` +
`bootstrap`
* default image format is squashfs, eliminating the need to
specify a size
* a `localimage` can be used as a build base, including ext3,
sandbox, and other squashfs images
* singularity hub can now be used as a base with the uri
* Restore docker-extract aufs whiteout handling that implements
correct extraction of docker container layers.
* several bug fixes, see CHANGELOG.md for details
- Removed: singularity-2.3.2.tar.gz
- Added: singularity-2.5.2.tar.gz
- Removed 'notyet' if conditions in specfile to allow files
introduced in v2.5.2
- Fixed access control on systems supporting overlay file system
(CVE-2018-12021, boo#1100333).