Log Message:
Changes 2.13:
** Bug fixes
  grep -i, in a multi-byte locale, when matching a line containing a character
  like the UTF-8 Turkish I-with-dot (U+0130) (whose lower-case representation
  occupies fewer bytes), would print an incomplete output line.
  Similarly, with a matched line containing a character (e.g., the Latin
  capital I in a Turkish UTF-8 locale), where the lower-case representation
  occupies more bytes, grep could print garbage.
  [bug introduced in grep-2.6]

  --include and --exclude can again be combined, and again apply to
  the command line, e.g., "grep --include='*.[ch]' --exclude='system.h'
  PATTERN *" again reads all *.c and *.h files except for system.h.
  [bug introduced in grep-2.6]

** New features
  'grep' without -z now treats a sparse file as binary, if it can
  easily determine that the file is sparse.

** Dropped features
  Bootstrapping with Makefile.boot has been broken since grep 2.6,
  and was removed.