Log Message:
Changes 8.11:
A number of bugs in the library and in pcregrep have been fixed. As always, see
ChangeLog for details. The following are the non-bug-fix changes:
. Added --match-limit and --recursion-limit to pcregrep.
. Added an optional parentheses number to the -o and --only-matching options
  of pcregrep.
. Changed the way PCRE_PARTIAL_HARD affects the matching of $, \z, \Z, \b, and
  \B.
. Added PCRE_ERROR_SHORTUTF8 to make it possible to distinguish between a
  bad UTF-8 sequence and one that is incomplete when using PCRE_PARTIAL_HARD.
. Recognize (*NO_START_OPT) at the start of a pattern to set the PCRE_NO_
  START_OPTIMIZE option, which is now allowed at compile time