Wrong weight for text/x-todo-txt glob rule

Hi,

When matching against a filename todo.txt, the algorithm will return two matches:

• one for text/x-todo-txt with weight=10 and length=8
• one for text/plain with weight=50 and length=5

After sorting by weight and length, the matches will ordered like so:

[0]: text/plain
[1]: text/x-todo-txt

Since the algorithm must then pick the first match, the text/plain rules always wins.

Therefore, the glob rule for text/x-todo-txt should be updated to have a weight of 50.