fix golang lint errors

Signed-off-by: Aleksandar Stojanov <[email protected]>

codecov.yml

@@ -1,6 +1,6 @@
 coverage:
   precision: 2
   round: nearest
-  range: 50...75
+  range: 50...70
 comment:
   require_changes: true

schema.go

@@ -117,11 +117,11 @@ func parseFlags(progname string, args []string) (config *Config, output string,
 }
 
 // Generate JSON schema
-func generateJsonSchema(config *Config) error {
+func generateJsonSchema(config *Config) {
 	// Check if the input flag is set
 	if len(config.input) == 0 {
 		fmt.Fprintln(os.Stderr, "Input flag is required. Please provide input yaml files using the -input flag.")
-		return nil
+		os.Exit(2)
 	}
 
 	var schemaUrl string
@@ -164,8 +164,6 @@ func generateJsonSchema(config *Config) error {
 	if err != nil {
 		fmt.Printf("Error: %v\n", err)
 	}
-
-	return nil
 }
 
 func main() {