Fixed trucation of value warning.

There was a parameter mismatch between abs(), which expects an int,
and atol() which returns a long. Since max_drift is defined as an int,
there is no need to pars q as a long rather than an int.

src/mod/endpoints/mod_sofia/rtp.c

@@ -622,7 +622,7 @@ static switch_status_t channel_receive_message(switch_core_session_t *session, s
 							maxlen = atol(p);
 							if ((q = strchr(p, ':'))) {
 								q++;
-								max_drift = abs(atol(q));
+								max_drift = abs(atoi(q));
 							}
 						}
 					}