A+C: update email address

Change-Id: I67b8b501290f6e321030967a19e3cb3bb9d678c6
Reviewed-on: https://go-review.googlesource.com/107016Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

AUTHORS

@@ -353,7 +353,7 @@ Elena Grahovac <elena@grahovac.me>
 Elias Naur <elias.naur@gmail.com>
 Elliot Morrison-Reed <elliotmr@gmail.com>
 Emerson Lin <linyintor@gmail.com>
-Emil Hessman <c.emil.hessman@gmail.com> <emil@hessman.se>
+Emil Hessman <emil@hessman.se>
 Emilien Kenler <hello@emilienkenler.com>
 Emmanuel Odeke <emm.odeke@gmail.com> <odeke@ualberta.ca>
 Empirical Interfaces Inc.

CONTRIBUTORS

@@ -473,7 +473,7 @@ Elena Grahovac <elena@grahovac.me>
 Elias Naur <elias.naur@gmail.com>
 Elliot Morrison-Reed <elliotmr@gmail.com>
 Emerson Lin <linyintor@gmail.com>
-Emil Hessman <c.emil.hessman@gmail.com> <emil@hessman.se>
+Emil Hessman <emil@hessman.se>
 Emilien Kenler <hello@emilienkenler.com>
 Emmanuel Odeke <emm.odeke@gmail.com> <odeke@ualberta.ca>
 Eoghan Sherry <ejsherry@gmail.com>