Bug#669721: README.package-tests: typo: breaks-computer -> breaks-testbed

[Jakub Wilk]

Package: autopkgtest
Version: 2.0.1
Severity: minor

README.package-tests contains the following example:

         Tests: fred bill bongo
         Restrictions: needs-root breaks-computer

But breaks-computer is not defined. I guess it should be: 
s/computer/testbed/.

-- 
Jakub Wilk