fix: correct append service name logic in Filters function

This fixes a regression introduced by #395

pkg/config/app_test.go

@@ -120,7 +120,7 @@ func TestFilters(t *testing.T) {
 	app, err := config.NewApp(config.AppEnv{
 		"DOMAIN": "test.example.com",
 		"RECIPE": "test-recipe",
-	}, "filtertest", config.AppFile{
+	}, "test_example_com", config.AppFile{
 		Path:   "./testdir/filtertest.end",
 		Server: "local",
 	})
@@ -134,7 +134,7 @@ func TestFilters(t *testing.T) {
 	}
 	compareFilter(t, f, map[string]map[string]bool{
 		"name": {
-			"filtertest": true,
+			"test_example_com": true,
 		},
 	})
 
@@ -144,7 +144,7 @@ func TestFilters(t *testing.T) {
 	}
 	compareFilter(t, f2, map[string]map[string]bool{
 		"name": {
-			"^filtertest": true,
+			"^test_example_com": true,
 		},
 	})
 
@@ -154,8 +154,8 @@ func TestFilters(t *testing.T) {
 	}
 	compareFilter(t, f3, map[string]map[string]bool{
 		"name": {
-			"filtertest_bar": true,
-			"filtertest_foo": true,
+			"test_example_com_bar": true,
+			"test_example_com_foo": true,
 		},
 	})
 
@@ -165,8 +165,8 @@ func TestFilters(t *testing.T) {
 	}
 	compareFilter(t, f4, map[string]map[string]bool{
 		"name": {
-			"^filtertest_bar": true,
-			"^filtertest_foo": true,
+			"^test_example_com_bar": true,
+			"^test_example_com_foo": true,
 		},
 	})
 
@@ -176,7 +176,7 @@ func TestFilters(t *testing.T) {
 	}
 	compareFilter(t, f5, map[string]map[string]bool{
 		"name": {
-			"filtertest_foo": true,
+			"test_example_com_foo": true,
 		},
 	})
 }