Fix casing in error strings

cmd/kops/create.go

@@ -210,7 +210,7 @@ func RunCreate(ctx context.Context, f *util.Factory, out io.Writer, c *CreateOpt
 
 			default:
 				klog.V(2).Infof("Type of object was %T", v)
-				return fmt.Errorf("Unhandled kind %q in %s", gvk, f)
+				return fmt.Errorf("unhandled kind %q in %s", gvk, f)
 			}
 		}
 	}

cmd/kops/create_cluster.go

@@ -842,7 +842,7 @@ func parseCloudLabels(s string) (map[string]string, error) {
 	r.TrimLeadingSpace = true
 	kvPairs, err := r.ReadAll()
 	if err != nil {
-		return nil, fmt.Errorf("One or more key=value pairs are malformed:\n%s\n:%v", records, err)
+		return nil, fmt.Errorf("one or more key=value pairs are malformed:\n%s\n:%w", records, err)
 	}
 
 	m := make(map[string]string, len(kvPairs))

cmd/kops/get_all.go

@@ -84,7 +84,7 @@ func RunGetAll(ctx context.Context, f commandutils.Factory, out io.Writer, optio
 	}
 
 	if cluster == nil {
-		return fmt.Errorf("No cluster found")
+		return fmt.Errorf("no cluster found")
 	}
 
 	igList, err := client.InstanceGroupsFor(cluster).List(ctx, metav1.ListOptions{})
@@ -157,7 +157,7 @@ func RunGetAll(ctx context.Context, f commandutils.Factory, out io.Writer, optio
 		}
 
 	default:
-		return fmt.Errorf("Unknown output format: %q", options.Output)
+		return fmt.Errorf("unknown output format: %q", options.Output)
 	}
 
 	return nil

cmd/kops/get_cluster.go

@@ -184,7 +184,7 @@ func RunGetClusters(ctx context.Context, f commandutils.Factory, out io.Writer,
 		// kops get cluster test.example.com -o json will return a single object (since a specific cluster is selected)
 		return fullOutputJSON(out, singleClusterSelected, obj...)
 	default:
-		return fmt.Errorf("Unknown output format: %q", options.Output)
+		return fmt.Errorf("unknown output format: %q", options.Output)
 	}
 }
 

cmd/kops/get_keypairs.go

@@ -253,7 +253,7 @@ func RunGetKeypairs(ctx context.Context, f commandutils.Factory, out io.Writer,
 		}
 
 	default:
-		return fmt.Errorf("Unknown output format: %q", options.Output)
+		return fmt.Errorf("unknown output format: %q", options.Output)
 	}
 
 	return nil

cmd/kops/get_secrets.go

@@ -130,7 +130,7 @@ func RunGetSecrets(ctx context.Context, f *util.Factory, out io.Writer, options
 	}
 
 	if len(items) == 0 {
-		return fmt.Errorf("No secrets found")
+		return fmt.Errorf("no secrets found")
 	}
 	switch options.Output {
 

cmd/kops/validate_cluster.go

@@ -87,7 +87,7 @@ func NewCmdValidateCluster(f *util.Factory, out io.Writer) *cobra.Command {
 		RunE: func(cmd *cobra.Command, args []string) error {
 			result, err := RunValidateCluster(context.TODO(), f, out, options)
 			if err != nil {
-				return fmt.Errorf("Validation failed: %v", err)
+				return fmt.Errorf("validation failed: %v", err)
 			}
 
 			// We want the validate command to exit non-zero if validation found a problem,