Log message:
Pullup ticket #5821 - requested by bsiegert
x11/libxkbcommon: security update

Revisions pulled up:
- x11/libxkbcommon/Makefile                                     1.21
- x11/libxkbcommon/distinfo                                     1.14

-------------------------------------------------------------------
   Module Name:    pkgsrc
   Committed By:   wiz
   Date:           Thu Aug 16 12:21:44 UTC 2018

   Modified Files:
           pkgsrc/x11/libxkbcommon: Makefile distinfo

   Log message:
   libxkbcommon: update to 0.8.2.

   libxkbcommon 0.8.2 - 2018-08-05
   =========

   - Fix various problems found with fuzzing (see commit messages for
     more details):

       - Fix a few NULL-dereferences, out-of-bounds access and undefined behavior
         in the XKB text format parser.

   libxkbcommon 0.8.1 - 2018-08-03
   =========

   - Fix various problems found in the meson build (see commit messages for more
     details):

       - Fix compilation on Darwin.

       - Fix compilation of the x11 tests and demos when XCB is installed in a
         non-standard location.

       - Fix xkbcommon-x11.pc missing the Requires specification.

   - Fix various problems found with fuzzing and Coverity (see commit messages for
     more details):

       - Fix stack overflow in the XKB text format parser when evaluating boolean
         negation.

       - Fix NULL-dereferences in the XKB text format parser when some unsupported
         tokens appear (the tokens are still parsed for backward compatibility).

       - Fix NULL-dereference in the XKB text format parser when parsing an
         xkb_geometry section.

       - Fix an infinite loop in the Compose text format parser on some inputs.

       - Fix an invalid free() when using multiple keysyms.

   - Replace the Unicode characters for the leftanglebracket and rightanglebracket
     keysyms from the deprecated LEFT/RIGHT-POINTING ANGLE BRACKET to
     MATHEMATICAL LEFT/RIGHT ANGLE BRACKET.

   - Reject out-of-range Unicode codepoints in xkb_keysym_to_utf8 and
     xkb_keysym_to_utf32.

   To generate a diff of this commit:
   cvs rdiff -u -r1.20 -r1.21 pkgsrc/x11/libxkbcommon/Makefile
   cvs rdiff -u -r1.13 -r1.14 pkgsrc/x11/libxkbcommon/distinfo