simplify logger time and avoid possible crashes (#13986)

time.Format() is not necessary prematurely for JSON
marshalling, since JSON marshalling indeed defaults
to RFC3339Nano.

This also ensures the 'time' is remembered until its
logged and it is the same time when the 'caller'
invoked 'log' functions.

internal/logger/message/log/entry.go

@@ -17,7 +17,10 @@
 
 package log
 
-import "strings"
+import (
+	"strings"
+	"time"
+)
 
 // Args - defines the arguments for the API.
 type Args struct {
@@ -41,17 +44,17 @@ type API struct {
 
 // Entry - defines fields and values of each log entry.
 type Entry struct {
-	DeploymentID string `json:"deploymentid,omitempty"`
-	Level        string `json:"level"`
-	LogKind      string `json:"errKind"`
-	Time         string `json:"time"`
-	API          *API   `json:"api,omitempty"`
-	RemoteHost   string `json:"remotehost,omitempty"`
-	Host         string `json:"host,omitempty"`
-	RequestID    string `json:"requestID,omitempty"`
-	UserAgent    string `json:"userAgent,omitempty"`
-	Message      string `json:"message,omitempty"`
-	Trace        *Trace `json:"error,omitempty"`
+	DeploymentID string    `json:"deploymentid,omitempty"`
+	Level        string    `json:"level"`
+	LogKind      string    `json:"errKind"`
+	Time         time.Time `json:"time"`
+	API          *API      `json:"api,omitempty"`
+	RemoteHost   string    `json:"remotehost,omitempty"`
+	Host         string    `json:"host,omitempty"`
+	RequestID    string    `json:"requestID,omitempty"`
+	UserAgent    string    `json:"userAgent,omitempty"`
+	Message      string    `json:"message,omitempty"`
+	Trace        *Trace    `json:"error,omitempty"`
 }
 
 // Info holds console log messages