Log Message:
rinetd: update HOMEPAGE and MASTER_SITE. While here update to 0.73.

Version 0.73 (2021/02/19)
  improve error reporting
  fixed another configuration parsing bug
Version 0.72 (2021/02/16)
  fixed a configuration parsing bug making 0.71 almost unusable
Version 0.71 (2021/02/14)
  IPv6 support
  fixed a display overflow in data usage statistics
  made the configuration parser more tolerant with service names that contain
    dashes (e.g. snmp-trap) or hostnames with underscores
  create the log file if it does not exist
  new Visual Studio project file
Version 0.70 (2017/09/09)
  UDP support
  source address binding support
  use a real grammar for the configuration file and get rid of the hand-made
    parser
Version 0.63 (2017/07/19)
  added a -f flag to run in the foreground
  quit cleanly when SIGINT is received
  increased data buffer size for better performance
  fixed random uninitialised data accesses
  fixed a memory leak in connection reallocation
  fixed a file descriptor leak in configuration reload
  fixed configuration file parsing (many bugs including a buffer overflow)
  fixed configuration error reporting (line numbers were wrong)
  log accepted connections in addition to denied ones
  log DNS errors
  code quality refactoring: got rid of a lot of old code, used C library
    functions instead of custom ones, enforced const correctness