fix documentation example function names

These will now appear properly within godoc.

Author: picatz

enumeration_options_test.go

@@ -27,7 +27,7 @@ func ExampleEnumerationOptions() {
 	// Output: sources not found in options
 }
 
-func ExampleEnumerationOptionsHasSources() {
+func ExampleEnumerationOptions_HasSources() {
 	opts := EnumerationOptions{}
 	fmt.Println(opts.HasSources())
 	// Output: false

result_test.go

@@ -82,23 +82,23 @@ func ExampleResult() {
 	// Output: example : info.bing.com
 }
 
-func ExampleResultIsSuccess() {
+func ExampleResult_IsSuccess() {
 	result := Result{Success: "wiggle.github.com"}
 	if result.IsSuccess() {
 		fmt.Println(result.Success)
 	}
 	// Output: wiggle.github.com
 }
 
-func ExampleResultIsFailure() {
+func ExampleResult_IsFailure() {
 	result := Result{Failure: errors.New("failed to party")}
 	if result.IsFailure() {
 		fmt.Println(result.Failure.Error())
 	}
 	// Output: failed to party
 }
 
-func ExampleResultHasType() {
+func ExampleResult_HasType() {
 	result := Result{Type: "example"}
 	fmt.Println(result.HasType())
 	// Output: true