misc: fix error formatting in multiple files

lntest/harness.go

@@ -685,7 +685,7 @@ func (n *NetworkHarness) SaveProfilesPages() {
 
 	for _, node := range n.activeNodes {
 		if err := saveProfilesPage(node); err != nil {
-			fmt.Println(err)
+			fmt.Printf("Error: %v\n", err)
 		}
 	}
 }
@@ -699,16 +699,16 @@ func saveProfilesPage(node *HarnessNode) error {
 		),
 	)
 	if err != nil {
-		return fmt.Errorf("Failed to get profile page "+
-			"(node_id=%d, name=%s): %v\n",
+		return fmt.Errorf("failed to get profile page "+
+			"(node_id=%d, name=%s): %v",
 			node.NodeID, node.Cfg.Name, err)
 	}
 	defer resp.Body.Close()
 
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
-		return fmt.Errorf("Failed to read profile page "+
-			"(node_id=%d, name=%s): %v\n",
+		return fmt.Errorf("failed to read profile page "+
+			"(node_id=%d, name=%s): %v",
 			node.NodeID, node.Cfg.Name, err)
 	}
 
@@ -719,16 +719,16 @@ func saveProfilesPage(node *HarnessNode) error {
 
 	logFile, err := os.Create(fileName)
 	if err != nil {
-		return fmt.Errorf("Failed to create file for profile page "+
-			"(node_id=%d, name=%s): %v\n",
+		return fmt.Errorf("failed to create file for profile page "+
+			"(node_id=%d, name=%s): %v",
 			node.NodeID, node.Cfg.Name, err)
 	}
 	defer logFile.Close()
 
 	_, err = logFile.Write(body)
 	if err != nil {
-		return fmt.Errorf("Failed to save profile page "+
-			"(node_id=%d, name=%s): %v\n",
+		return fmt.Errorf("failed to save profile page "+
+			"(node_id=%d, name=%s): %v",
 			node.NodeID, node.Cfg.Name, err)
 	}
 	return nil
@@ -872,10 +872,10 @@ func (n *NetworkHarness) OpenChannel(ctx context.Context,
 	// prevents any funding workflows from being kicked off if the chain
 	// isn't yet synced.
 	if err := srcNode.WaitForBlockchainSync(ctx); err != nil {
-		return nil, fmt.Errorf("Unable to sync srcNode chain: %v", err)
+		return nil, fmt.Errorf("enable to sync srcNode chain: %v", err)
 	}
 	if err := destNode.WaitForBlockchainSync(ctx); err != nil {
-		return nil, fmt.Errorf("Unable to sync destNode chain: %v", err)
+		return nil, fmt.Errorf("unable to sync destNode chain: %v", err)
 	}
 
 	minConfs := int32(1)
@@ -941,10 +941,10 @@ func (n *NetworkHarness) OpenPendingChannel(ctx context.Context,
 
 	// Wait until srcNode and destNode have blockchain synced
 	if err := srcNode.WaitForBlockchainSync(ctx); err != nil {
-		return nil, fmt.Errorf("Unable to sync srcNode chain: %v", err)
+		return nil, fmt.Errorf("unable to sync srcNode chain: %v", err)
 	}
 	if err := destNode.WaitForBlockchainSync(ctx); err != nil {
-		return nil, fmt.Errorf("Unable to sync destNode chain: %v", err)
+		return nil, fmt.Errorf("unable to sync destNode chain: %v", err)
 	}
 
 	openReq := &lnrpc.OpenChannelRequest{

lntest/node.go

@@ -1122,7 +1122,7 @@ func (hn *HarnessNode) WaitForBlockchainSync(ctx context.Context) error {
 	case err := <-errChan:
 		return err
 	case <-ctx.Done():
-		return fmt.Errorf("Timeout while waiting for blockchain sync")
+		return fmt.Errorf("timeout while waiting for blockchain sync")
 	}
 }