Name field WorkID to make golint happy.

jsoncmd.go

@@ -6168,7 +6168,7 @@ func (cmd *StopCmd) UnmarshalJSON(b []byte) error {
 // a SubmitBlockCmd command.
 type SubmitBlockOptions struct {
 	// must be provided if server provided a workid with template.
-	WorkId string `json:"workid,omitempty"`
+	WorkID string `json:"workid,omitempty"`
 }
 
 // SubmitBlockCmd is a type handling custom marshaling and

jsoncmd_test.go

@@ -1473,12 +1473,12 @@ var jsoncmdtests = []struct {
 		f: func() (Cmd, error) {
 			return NewSubmitBlockCmd(testId,
 				"lotsofhex",
-				&SubmitBlockOptions{WorkId: "otherstuff"})
+				&SubmitBlockOptions{WorkID: "otherstuff"})
 		},
 		result: &SubmitBlockCmd{
 			id:       testId,
 			HexBlock: "lotsofhex",
-			Options:  &SubmitBlockOptions{WorkId: "otherstuff"},
+			Options:  &SubmitBlockOptions{WorkID: "otherstuff"},
 		},
 	},
 	{