fix: fix message shown when a taskfile was not found (#2431)

errors/errors_taskfile.go

@@ -11,14 +11,18 @@ import (
 // TaskfileNotFoundError is returned when no appropriate Taskfile is found when
 // searching the filesystem.
 type TaskfileNotFoundError struct {
-	URI  string
-	Walk bool
+	URI     string
+	Walk    bool
+	AskInit bool
 }
 
 func (err TaskfileNotFoundError) Error() string {
 	var walkText string
 	if err.Walk {
-		walkText = " (or any of the parent directories)"
+		walkText = " (or any of the parent directories)."
+	}
+	if err.AskInit {
+		walkText += " Run `task --init` to create a new Taskfile."
 	}
 	return fmt.Sprintf(`task: No Taskfile found at %q%s`, err.URI, walkText)
 }