With only 3 occurences of the word e-mail spelled as "e-mail", it is outranked by "email" without the dash by a factor of 10 (give or take). Therefore this PR suggests to change those three to "email" as well :)
I checked the Oxford dictionary. Both spellings are correct. I do prefer the form without the dash, it flows easier when typing (and hopefully while reading as well!).
With only 3 occurences of the word e-mail spelled as "e-mail", it is outranked by "email" without the dash by a factor of 10 (give or take). Therefore this PR suggests to change those three to "email" as well :)