20625
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11535 RBBrowserEnvironment packages method is too broad backport
https://pharo.fogbugz.com/f/cases/11535
Diff information: http://ss3.gemstone.com/ss/Pharo20/Refactoring-Environment-MarcusDenker.14.diff http://ss3.gemstone.com/ss/Pharo20/NautilusCommon-MarcusDenker.122.diff
