fix err msg

cmd/gateway_validate.go

@@ -226,7 +226,7 @@ this command unless --online flag is used.
 					sort.Strings(listOfKeys)
 
 					return fmt.Errorf(
-						"invalid value '%s' for --check-online-plugins-only; it should be a valid Kong entity. "+
+						"invalid value '%s' for --online-entities-list; it should be a valid Kong entity (case-sensitive). "+
 							"Valid entities: %v",
 						value, listOfKeys,
 					)
@@ -260,7 +260,7 @@ this command unless --online flag is used.
 	validateCmd.Flags().BoolVar(&validateCmdRBACResourcesOnly, "rbac-resources-only",
 		false, "indicate that the state file(s) contains RBAC resources only (Kong Enterprise only).")
 	validateCmd.Flags().StringSliceVarP(&validateCmdOnlineEntitiesFilter, "online-entities-list",
-		"", []string{}, "indicate the list of entitied that should be validate online validation.")
+		"", []string{}, "indicate the list of entities that should be validated online validation.")
 	if deprecated {
 		validateCmd.Flags().StringSliceVarP(&validateCmdKongStateFile,
 			"state", "s", []string{"kong.yaml"}, "file(s) containing Kong's configuration.\n"+

tests/integration/validate_test.go

@@ -81,10 +81,10 @@ func Test_Validate_Konnect(t *testing.T) {
 			stateFile:      "testdata/validate/kong3x.yaml",
 			additionalArgs: []string{"--online-entities-list=services,Routes,Plugins"},
 			errorExpected:  true,
-			errorString: "invalid value 'services' for --check-online-plugins-only; it should be a valid " +
-				"Kong entity. Valid entities: [ACLGroups BasicAuths CACertificates Certificates Consumers Documents " +
-				"FilterChains HMACAuths JWTAuths KeyAuths Oauth2Creds Plugins RBACEndpointPermissions RBACRoles Routes " +
-				"SNIs Services Targets Upstreams Vaults]",
+			errorString: "invalid value 'services' for --online-entities-list; it should be a valid " +
+				"Kong entity (case-sensitive). Valid entities: [ACLGroups BasicAuths CACertificates Certificates Consumers " +
+				"Documents FilterChains HMACAuths JWTAuths KeyAuths Oauth2Creds Plugins RBACEndpointPermissions RBACRoles " +
+				"Routes SNIs Services Targets Upstreams Vaults]",
 		},
 		{
 			name:           "validate with correct online list, passed via --online-entities-list cli flag",