Document how iteration works for UploadFile
|Reported by:||mtredinnick||Owned by:||nobody|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
Iterating over an UploadFile instance splits lines on \n only (we don't know the native line-ending of the sending system and we also use StringIO internally). This should be documented.