chore: fix lint errors (#987)

Fixes a few lint issues, directly, and by ignoring some submodules.

---------

Signed-off-by: Todd Baert <todd.baert@dynatrace.com>

.golangci.yml

@@ -2,6 +2,8 @@ run:
   skip-dirs:
     - (^|/)bin($|/)
     - (^|/)examples($|/)
+    - (^|/)schemas($|/)
+    - (^|/)test-harness($|/)
 linters:
   enable:
     - asciicheck

flagd/cmd/start.go

@@ -29,6 +29,7 @@ const (
 	sourcesFlagName        = "sources"
 	syncProviderFlagName   = "sync-provider"
 	uriFlagName            = "uri"
+	docsLinkConfiguration  = "https://flagd.dev/reference/flagd-cli/flagd_start/"
 
 	defaultServicePort = 8013
 	defaultMetricsPort = 8014
@@ -117,18 +118,18 @@ var startCmd = &cobra.Command{
 		rtLogger.Info(fmt.Sprintf("flagd version: %s (%s), built at: %s", Version, Commit, Date))
 
 		if viper.GetString(syncProviderFlagName) != "" {
-			rtLogger.Warn("DEPRECATED: The --sync-provider flag has been deprecated. " +
-				"Docs: https://github.com/open-feature/flagd/blob/main/docs/configuration/configuration.md")
+			rtLogger.Warn("DEPRECATED: The --sync-provider flag has been deprecated, see: " +
+				docsLinkConfiguration)
 		}
 
 		if viper.GetString(evaluatorFlagName) != "json" {
-			rtLogger.Warn("DEPRECATED: The --evaluator flag has been deprecated. " +
-				"Docs: https://github.com/open-feature/flagd/blob/main/docs/configuration/configuration.md")
+			rtLogger.Warn("DEPRECATED: The --evaluator flag has been deprecated, see: " +
+				docsLinkConfiguration)
 		}
 
 		if viper.GetString(providerArgsFlagName) != "" {
-			rtLogger.Warn("DEPRECATED: The --sync-provider-args flag has been deprecated. " +
-				"Docs: https://github.com/open-feature/flagd/blob/main/docs/configuration/configuration.md")
+			rtLogger.Warn("DEPRECATED: The --sync-provider-args flag has been deprecated, see: " +
+				docsLinkConfiguration)
 		}
 
 		syncProviders, err := runtime.ParseSyncProviderURIs(viper.GetStringSlice(uriFlagName))