White space after # in tempest/api files

Fixing a style issue related to comments in the api tests.

Change-Id: I3d98394ecace3c457312355863fbd281e0f57e19
Negative attribute added in server negative test

Here a neagtive attribute is added in
the decorators in the neagtive tests.

Change-Id: I7e57ba9a8e51ec689055fa9199c90858949e0ee2
Merge "White space after # in tempest/api files"
Merge "Negative attribute added in server negative test"