display an error if a monitor method has not been applied

Sometimes ftrace monitor method fails to apply, but we displayed on the
GUI that it had been applied.

daemon/procmon/process.go

@@ -107,18 +107,18 @@ func End() {
 }
 
 // Init starts parsing connections using the method specified.
-func Init() {
+func Init() (err error) {
 	if cacheMonitorsRunning == false {
 		go monitorActivePids()
 		go cacheCleanerTask()
 		cacheMonitorsRunning = true
 	}
 
 	if methodIsFtrace() {
-		err := Start()
+		err = Start()
 		if err == nil {
 			log.Info("Process monitor method ftrace")
-			return
+			return nil
 		}
 		log.Warning("error starting ftrace monitor method: %v", err)
 
@@ -127,12 +127,13 @@ func Init() {
 		if err == nil {
 			log.Info("Process monitor method audit")
 			go audit.Reader(auditConn, (chan<- audit.Event)(audit.EventChan))
-			return
+			return nil
 		}
 		log.Warning("error starting audit monitor method: %v", err)
 	}
 
 	// if any of the above methods have failed, fallback to proc
 	log.Info("Process monitor method /proc")
 	SetMonitorMethod(MethodProc)
+	return err
 }

daemon/ui/notifications.go

@@ -103,7 +103,9 @@ func (c *Client) handleActionChangeConfig(stream protocol.UI_NotificationsClient
 	if err != nil {
 		log.Warning("[notification] CHANGE_CONFIG not applied %s", err)
 	} else if err == nil && procMonitorEqual == false {
-		procmon.Init()
+		if err := procmon.Init(); err != nil {
+			c.sendNotificationReply(stream, notification.Id, "", err)
+		}
 	}
 
 	c.sendNotificationReply(stream, notification.Id, "", err)

ui/opensnitch/res/preferences.ui

@@ -746,6 +746,9 @@
      <property name="text">
       <string/>
      </property>
+     <property name="wordWrap">
+      <bool>true</bool>
+     </property>
     </widget>
    </item>
   </layout>