libXdamage: update to 1.1.6.

Alan Coopersmith (11):
      Update configure.ac bug URL for gitlab migration
      Build xz tarballs instead of bzip2
      Fix spelling/wording issues
      gitlab CI: add a basic build test
      Variable scope reduction as recommended by cppcheck
      Mark two dpy parameters const as suggested by cppcheck
      XDamageCloseDisplay: Mark codes as unused
      Remove unnecessary casts from malloc() and free() calls
      Handle -Wconversion warnings from clang
      Handle -Wshorten-64-to-32 warnings from clang
      libXdamage 1.1.6

(wiz)