kitchen: fix emission of annotations

go/src/infra/tools/kitchen/cook.go

Index: go/src/infra/tools/kitchen/cook.go
diff --git a/go/src/infra/tools/kitchen/cook.go b/go/src/infra/tools/kitchen/cook.go
index 17b41f4757bd7aee2005d4c52ef14555331bff92..84198bf2e14be5ebb4f141563212ddb39c3b3e2f 100644
--- a/go/src/infra/tools/kitchen/cook.go
+++ b/go/src/infra/tools/kitchen/cook.go
@@ -227,11 +227,14 @@ func (c *cookRun) Run(a subcommands.Application, args []string) (exitCode int) {
 	// Relevant code:
 	// https://chromium.googlesource.com/chromium/tools/depot_tools/+/248331450c05c59c8e966c806f00bd2475e36603/recipe_modules/infra_paths/api.py#12
 	// https://chromium.googlesource.com/chromium/tools/depot_tools/+/248331450c05c59c8e966c806f00bd2475e36603/recipe_modules/infra_paths/path_config.py#57
+	if _, ok := props["path_config"]; ok {
+		fmt.Fprintln(os.Stderr, `"path_config" property must not be set; it is reserved by kitchen`)
+	}
 	props["path_config"] = "swarmbucket"
 
 	// If we're not using LogDog, send out annotations.
 	bootstapSuccess := true
-	if !c.logdog.emitAnnotations() {
+	if c.logdog.emitAnnotations() {
 		if c.Timestamps {
 			annotateTime(ctx)
 		}