- Update to version 2.28:
* Improve performance for -E or -G pattern lists that are easily
converted to -F format.
* Fix performance regression with multiple patterns.
* When standard output is /dev/null, grep no longer fails when
standard input is a file in the Linux /proc file system, or when
standard input is a pipe and standard output is in append mode.
* When grep -Fo finds matches of differing length, it could
mistakenly print a shorter one. Now it prints a longest one.
- Drop upstreamed proc-lseek-glitch.patch (forwarded request 455466 from pluskalm)