minor code cleanup

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@17867 65c4cc65-6c06-0410-ace0-fbb531ad65f3

sched.c

@@ -391,15 +391,14 @@ long ast_sched_when(struct sched_context *con,int id)
 	DEBUG(ast_log(LOG_DEBUG, "ast_sched_when()\n"));
 
 	ast_mutex_lock(&con->lock);
-	s=con->schedq;
-	while (s!=NULL) {
-		if (s->id==id) break;
-		s=s->next;
+	for (s = con->schedq; s; s = s->next) {
+		if (s->id == id)
+			break;
 	}
 	secs=-1;
 	if (s!=NULL) {
 		struct timeval now = ast_tvnow();
-		secs=s->when.tv_sec-now.tv_sec;
+		secs = s->when.tv_sec - now.tv_sec;
 	}
 	ast_mutex_unlock(&con->lock);
 	return secs;