Add OldLogin field to AuditEntryData (#2850)

Relates to: #2843.

Author: lmartinking

github/github-accessors.go

@@ -127,7 +127,8 @@ type AuditEntry struct {
 
 // AuditEntryData represents additional information stuffed into a `data` field.
 type AuditEntryData struct {
-	OldName *string `json:"old_name,omitempty"` // The previous name of the repository, for a name change
+	OldName  *string `json:"old_name,omitempty"`  // The previous name of the repository, for a name change
+	OldLogin *string `json:"old_login,omitempty"` // The previous name of the organization, for a name change
 }
 
 // GetAuditLog gets the audit-log entries for an organization.

github/github-accessors_test.go

@@ -300,7 +300,8 @@ func TestAuditEntry_Marshal(t *testing.T) {
 		WorkflowID:            Int64(1),
 		WorkflowRunID:         Int64(1),
 		Data: &AuditEntryData{
-			OldName: String("on"),
+			OldName:  String("on"),
+			OldLogin: String("ol"),
 		},
 	}
 
@@ -396,7 +397,8 @@ func TestAuditEntry_Marshal(t *testing.T) {
 		"workflow_id": 1,
 		"workflow_run_id": 1,
 		"data": {
-			"old_name": "on"
+			"old_name": "on",
+			"old_login": "ol"
 		}
 	}`