Update all plugins to use plugin/pkg/log (#1694)

* Update all plugins to use plugin/pkg/log

I wish this could have been done with sed. Alas manually changed all
callers to use the new plugin/pkg/log package.

* Error -> Info

* Add docs to debug plugin as well

1 files changed, 8 insertions, 7 deletions

diff --git a/plugin/dnstap/dnstapio/io.go b/plugin/dnstap/dnstapio/io.go
index 57a7302ac..a6f0442a0 100644
--- a/plugin/dnstap/dnstapio/io.go
+++ b/plugin/dnstap/dnstapio/io.go
@@ -1,11 +1,12 @@
 package dnstapio
 
 import (
-	"log"
 	"net"
 	"sync/atomic"
 	"time"
 
+	"github.com/coredns/coredns/plugin/pkg/log"
+
 	tap "github.com/dnstap/golang-dnstap"
 	fs "github.com/farsightsec/golang-framestream"
 )
@@ -70,7 +71,7 @@ func (dio *dnstapIO) newConnect() error {
 // Connect connects to the dnstop endpoint.
 func (dio *dnstapIO) Connect() {
 	if err := dio.newConnect(); err != nil {
-		log.Print("[ERROR] No connection to dnstap endpoint")
+		log.Error("No connection to dnstap endpoint")
 	}
 	go dio.serve()
 }
@@ -102,16 +103,16 @@ func (dio *dnstapIO) flushBuffer() {
 		if err := dio.newConnect(); err != nil {
 			return
 		}
-		log.Print("[INFO] Reconnected to dnstap")
+		log.Info("Reconnected to dnstap")
 	}
 
 	if err := dio.enc.flushBuffer(); err != nil {
-		log.Printf("[WARN] Connection lost: %s", err)
+		log.Warningf("Connection lost: %s", err)
 		dio.closeConnection()
 		if err := dio.newConnect(); err != nil {
-			log.Printf("[ERROR] Cannot connect to dnstap: %s", err)
+			log.Errorf("Cannot connect to dnstap: %s", err)
 		} else {
-			log.Print("[INFO] Reconnected to dnstap")
+			log.Info("Reconnected to dnstap")
 		}
 	}
 }
@@ -134,7 +135,7 @@ func (dio *dnstapIO) serve() {
 			dio.write(&payload)
 		case <-timeout:
 			if dropped := atomic.SwapUint32(&dio.dropped, 0); dropped > 0 {
-				log.Printf("[WARN] Dropped dnstap messages: %d", dropped)
+				log.Warningf("Dropped dnstap messages: %d", dropped)
 			}
 			dio.flushBuffer()
 			timeout = time.After(flushTimeout)