John, I agree with Martin that using single quotes is bad idea. I hope you decided to remove them. All Windows people used to double quotes so single quotes is not Windows way.
Also I think will be nice to have a way to disable this glob expansion via environment variable, e.g. BZR_GLOB=0 or BZR_GLOB=no. Using configs there is wrong idea, but os.environ should be OK and fast.
I've late here but I want to say my word.
John, I agree with Martin that using single quotes is bad idea. I hope you decided to remove them. All Windows people used to double quotes so single quotes is not Windows way.
Also I think will be nice to have a way to disable this glob expansion via environment variable, e.g. BZR_GLOB=0 or BZR_GLOB=no. Using configs there is wrong idea, but os.environ should be OK and fast.