Update to 3.0
Changelog:
* Noteworthy changes in release 3.0 (2017-02-09) [stable]
** Bug fixes
grep without -F no longer goes awry when given two or more patterns
that contain no special characters other than '\' and also contain a
subpattern like '\.' that escapes a character to make it ordinary.
[bug introduced in grep 2.28]
grep no longer fails to build on PCRE versions before 8.20.
[bug introduced in grep 2.28]
* Noteworthy changes in release 2.28 (2017-02-06) [stable]
** Bug fixes
When grep -Fo finds matches of differing length, it could
mistakenly print a shorter one. Now it prints a longest one.
[bug introduced in grep-2.26]
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.
[bugs introduced in grep-2.27]
Fix performance regression with multiple patterns, e.g., for -Fi in
a multi-byte locale, or for -Fw in a single-byte locale.
[bugs introduced in grep-2.19, grep-2.22 and grep-2.26]
** Improvements
Improve performance for -E or -G pattern lists that are easily
converted to -F format.
UnifiedSplitRaw
