giounix.c: s/g_main_poll_add/g_main_remove_add/g

giounix.c: s/g_main_poll_add/g_main_remove_add/g

Wed Dec 16 22:32:13 CST 1998 Shawn T. Amundson <amundson@gtk.org>

        * glib.h:
          giounix.c: s/g_main_poll_add/g_main_remove_add/g
                     s/g_main_poll_remove/g_main_remove_poll/g
                     s/g_main_poll_add_unlocking/g_main_add_unlocking_poll/g
          (from Tim Janik)

        * gthread-posix.c: use g_free in mutex_free (from Tim Janik)