[InterNetNews/inn] 8ed044: Enable -Wfloat-equal GCC warning

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: 8ed0449dec8410f710ebb6f113972b5522a2445f
      https://github.com/InterNetNews/inn/commit/8ed0449dec8410f710ebb6f113972b5522a2445f
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2021-12-07 (Tue, 07 Dec 2021)

  Changed paths:
    M configure.ac
    M innfeed/host.c

  Log Message:
  -----------
  Enable -Wfloat-equal GCC warning

And silent it in innfeed/host.c as it generates 4 warnings for correct code.

close #212