[ftmod_misdn] Add missing braces around condition of ternary operator.

For compilers that seem to do the wrong thing(tm).

Speculative fix for:

  segfault at 1 ip b72145d3 sp b58f8bfc error 4 in libc-2.11.3.so

  #0  0xb7a5d5d3 in vfprintf () from /lib/i686/cmov/libc.so.6
  #1  0xb7a7cec7 in vasprintf () from /lib/i686/cmov/libc.so.6
  #2  0xb7dd7c5b in switch_vasprintf (...)
  #3  0xb6296de2 in ftdm_logger (...)
  #4  0xb621625d in misdn_handle_mph_information_ind (...) at ftmod_misdn.c:658
Signed-off-by: Stefan Knoblich <stkn@openisdn.net>

libs/freetdm/src/ftmod/ftmod_misdn/ftmod_misdn.c

@@ -661,7 +661,7 @@ static int misdn_handle_mph_information_ind(ftdm_channel_t *chan, const struct m
 		bch_info = &info->bch[0];
 
 		ftdm_log_chan(chan, FTDM_LOG_DEBUG, "mISDN port state:\n\tD-Chan state:\t%hu\n\tD-Chan flags:\t%#lx\n\tD-Chan proto:\t%hu\n\tD-Chan active:\t%s\n",
-			info->dch.state, info->dch.ch.Flags, info->dch.ch.protocol, info->dch.ch.Flags & (1 << 6) ? "yes" : "no");
+			info->dch.state, info->dch.ch.Flags, info->dch.ch.protocol, (info->dch.ch.Flags & (1 << 6)) ? "yes" : "no");
 
 		/* TODO: try to translate this to a usable set of alarm flags */