Log Message:
libXdmcp: update to 1.1.5.

Alan Coopersmith (8):
      Remove "All rights reserved" from Oracle copyright notices
      configure: Use LT_INIT from libtool 2 instead of deprecated AC_PROG_LIBTOOL
      Xdmcp.h: add access attributes to function prototypes
      Clear -Wunused-macros warnings when arc4random_buf() is available
      XdmcpWriteHeader: drop unnecessary cast of free() argument
      XdmcpWriteHeader: use calloc instead of malloc to alloc buffer
      gitlab CI: add xz-utils to container for "make distcheck"
      libXdmcp 1.1.5