Update file to 5.37
- Make sure that continuation separators are printed with -k within softmagic
- Change SIGPIPE saving and restoring during compression to use sigaction(2) instead of signal(3) and cache it.
- Cache stat(2) calls more to reduce number of calls
- Handle --mime-type and -k correctly.
- Switch decompression code to use vfork() because tools like rpmdiff and rpmbuild call libmagic with large process footprints
- --enable-zlib, did not work.
- Improve regex efficiency