Changed a few lines of warning log to debug.

Change-Id: I151ce4dd58caafc3f4e39fa0a3aaaa93e4b1729d
diff --git a/VERSION b/VERSION
index 50e2274..2d6c0bc 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.0.3
+5.0.4
diff --git a/pkg/kafka/kafka_inter_container_library.go b/pkg/kafka/kafka_inter_container_library.go
index d874fb6..94e828b 100644
--- a/pkg/kafka/kafka_inter_container_library.go
+++ b/pkg/kafka/kafka_inter_container_library.go
@@ -20,13 +20,14 @@
 	"encoding/json"
 	"errors"
 	"fmt"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
 	"reflect"
 	"strings"
 	"sync"
 	"time"
 
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
 	"github.com/golang/protobuf/proto"
 	"github.com/golang/protobuf/ptypes"
 	"github.com/golang/protobuf/ptypes/any"
@@ -821,19 +822,19 @@
 			var err error
 			var textMapString ic.StrType
 			if err = ptypes.UnmarshalAny(arg.Value, &textMapString); err != nil {
-				logger.Warnw(ctx, "unable-to-unmarshal-kvarg-to-textmap-string", log.Fields{"value": arg.Value})
+				logger.Debug(ctx, "unable-to-unmarshal-kvarg-to-textmap-string", log.Fields{"value": arg.Value})
 				break
 			}
 
 			spanTextMap := make(map[string]string)
 			if err = json.Unmarshal([]byte(textMapString.Val), &spanTextMap); err != nil {
-				logger.Warnw(ctx, "unable-to-unmarshal-textmap-from-json-string", log.Fields{"textMapString": textMapString, "error": err})
+				logger.Debug(ctx, "unable-to-unmarshal-textmap-from-json-string", log.Fields{"textMapString": textMapString, "error": err})
 				break
 			}
 
 			var spanContext opentracing.SpanContext
 			if spanContext, err = opentracing.GlobalTracer().Extract(opentracing.TextMap, opentracing.TextMapCarrier(spanTextMap)); err != nil {
-				logger.Warnw(ctx, "unable-to-deserialize-textmap-to-span", log.Fields{"textMap": spanTextMap, "error": err})
+				logger.Debug(ctx, "unable-to-deserialize-textmap-to-span", log.Fields{"textMap": spanTextMap, "error": err})
 				break
 			}