Update subjects_spec.rb

Correct context spelling typo
Revert "Update subjects_spec.rb"

This reverts commit 986cad15f4f969a1ae83be700f253e0bec9383fa.
Merge branch 'master' of https://github.com/tjchambers/mutant
Merge branch 'master' of https://github.com/tjchambers/mutant