- Add changes of Andreas Stieger

- Update to file version 5.15 (bug fix release, no new featuress)
* Don't mix errors and regular output if there was an error
* in magic_descriptor() don't close the file and try to restore
its position
* Don't treat magic as an error if offset was past EOF (Christoph Biedl)
* Fix spacing issues in softmagic and elf (Jan Kaluza)
* Fix segmentation fault with multiple magic_load commands.
* The way "default" was implemented was not very useful because
the "if something was printed at that level" was not easily
controlled by the user, and the format was bound to a string
which is too restrictive. Add a "clear" for that level keyword
and make "default" void.
* disallow strength setting in "name" entries
- Adjust for upstream changes:
* file-5.14-tex.dif
* file-5.07-elf.dif
* file-5.12-ocloexec.patch
* file-5.12-nitpick.dif
* file-5.13.dif
- Drop patches, applied upstream:
* file-5.13-whitespace.patch
* elf-invalid-byte-order.patch

- add file-5.15-clear-invalid.patch to fix an invalid format

- Make if ready for file 5.15