address lint errors

Author: sean1588

tools/resourcedocsgen/cmd/docs/registry.go

@@ -329,7 +329,15 @@ func (p *FileSystemProvider) ListPackageMetadata() ([]*pkg.PackageMeta, error) {
 		return nil, errors.Wrapf(err, "reading directory %s", registryPackagesPath)
 	}
 
-	var metadataList []*pkg.PackageMeta
+	// Count YAML files to pre-allocate the slice mostly to appease the linter.
+	var yamlCount int
+	for _, file := range files {
+		if strings.HasSuffix(file.Name(), ".yaml") {
+			yamlCount++
+		}
+	}
+
+	metadataList := make([]*pkg.PackageMeta, 0, yamlCount)
 	for _, file := range files {
 		if !strings.HasSuffix(file.Name(), ".yaml") {
 			continue
@@ -384,7 +392,7 @@ func (p *RegistryAPIProvider) ListPackageMetadata() ([]*pkg.PackageMeta, error)
 		return nil, errors.Wrap(err, "decoding API response")
 	}
 
-	var metadataList []*pkg.PackageMeta
+	metadataList := make([]*pkg.PackageMeta, 0, len(response.Packages))
 	for _, apiPkg := range response.Packages {
 		metadata, err := convertAPIPackageToPackageMeta(apiPkg)
 		if err != nil {