Switch git-todo-parser from fsmiamoto original repo to stefanhaller's fork

Sometimes it takes a while to get PRs accepted upstream, and this blocks our
progress. Since I'm pretty much the only one making changes there anyway, it
makes sense to point to my fork directly.

vendor/github.com/stefanhaller/git-todo-parser/todo/parse.go

@@ -71,7 +71,7 @@ func parseLine(line string, commentChar byte) (Todo, error) {
 		return todo, ErrUnexpectedCommand
 	}
 
-	if todo.Command == Break {
+	if todo.Command == Break || todo.Command == NoOp {
 		return todo, nil
 	}
 

vendor/github.com/stefanhaller/git-todo-parser/todo/write.go

@@ -23,7 +23,6 @@ func writeTodo(f io.Writer, todo Todo, commentChar byte) error {
 
 	switch todo.Command {
 	case NoOp:
-		return nil
 
 	case Comment:
 		sb.WriteByte(commentChar)