Explicitly ignore errors from writes to responses

cmd/RolesApiConverter/main.go

@@ -37,7 +37,7 @@ func main() {
 		if err != nil {
 			panic(err)
 		}
-		defer file.Close()
+		defer func() { _ = file.Close() }()
 		input = file
 	}
 	if *flagOutputFile == "" {
@@ -47,7 +47,7 @@ func main() {
 		if err != nil {
 			panic(err)
 		}
-		defer file.Close()
+		defer func() { _ = file.Close() }()
 		output = file
 	}
 
@@ -100,5 +100,5 @@ func main() {
 	}
 	outBuilder.WriteString("}\n}\n")
 
-	fmt.Fprint(output, outBuilder.String())
+	_, _ = fmt.Fprint(output, outBuilder.String())
 }