Update mailmap to proper syntax

Also updates my entry to the proper name

Author: Mark-Simulacrum

.mailmap

@@ -53,7 +53,8 @@ Chris C Cerami <chrisccerami@users.noreply.github.com> Chris C Cerami <chrisccer
 Chris Pressey <cpressey@gmail.com>
 Chris Thorn <chris@thorn.co> Chris Thorn <thorn@thoughtbot.com>
 Chris Vittal <christopher.vittal@gmail.com> Christopher Vittal <christopher.vittal@gmail.com>
-Christian Poveda <christianpoveda@protonmail.com> <z1mvader@protonmail.com> <cn.poveda.ruiz@gmail.com>
+Christian Poveda <christianpoveda@protonmail.com> <z1mvader@protonmail.com>
+Christian Poveda <christianpoveda@protonmail.com> <cn.poveda.ruiz@gmail.com>
 Clark Gaebel <cg.wowus.cg@gmail.com> <cgaebel@mozilla.com>
 Clinton Ryan <clint.ryan3@gmail.com>
 Corey Richardson <corey@octayn.net> Elaine "See More" Nemo <corey@octayn.net>
@@ -79,7 +80,9 @@ Eric Holk <eric.holk@gmail.com> <eholk@mozilla.com>
 Eric Holmes <eric@ejholmes.net>
 Eric Reed <ecreed@cs.washington.edu> <ereed@mozilla.com>
 Erick Tryzelaar <erick.tryzelaar@gmail.com> <etryzelaar@iqt.org>
-Esteban Küber <esteban@kuber.com.ar> <estebank@users.noreply.github.com> <esteban@commure.com> <github@kuber.com.ar>
+Esteban Küber <esteban@kuber.com.ar> <estebank@users.noreply.github.com>
+Esteban Küber <esteban@kuber.com.ar> <esteban@commure.com>
+Esteban Küber <esteban@kuber.com.ar> <github@kuber.com.ar>
 Evgeny Sologubov
 Falco Hirschenberger <falco.hirschenberger@gmail.com> <hirschen@itwm.fhg.de>
 Felix S. Klock II <pnkfelix@pnkfx.org> Felix S Klock II <pnkfelix@pnkfx.org>
@@ -146,7 +149,7 @@ NAKASHIMA, Makoto <makoto.nksm+github@gmail.com> <makoto.nksm@gmail.com>
 NAKASHIMA, Makoto <makoto.nksm+github@gmail.com> <makoto.nksm+github@gmail.com>
 Marcell Pardavi <marcell.pardavi@gmail.com>
 Margaret Meyerhofer <mmeyerho@andrew.cmu.edu> <mmeyerho@andrew>
-Mark Simulacrum <mark.simulacrum@gmail.com>
+Mark Rousskov <mark.simulacrum@gmail.com>
 Mark Sinclair <mark.edward.x@gmail.com>
 Mark Sinclair <mark.edward.x@gmail.com> =Mark Sinclair <=125axel125@gmail.com>
 Markus Westerlind <marwes91@gmail.com> Markus <marwes91@gmail.com>
@@ -226,7 +229,7 @@ Tim Joseph Dumol <tim@timdumol.com>
 Torsten Weber <TorstenWeber12@gmail.com> <torstenweber12@gmail.com>
 Ty Overby <ty@pre-alpha.com>
 Ulrik Sverdrup <bluss@users.noreply.github.com> bluss <bluss>
-Ulrik Sverdrup <bluss@users.noreply.github.com> bluss <bluss@users.noreply.github.com> bluss <bluss>
+Ulrik Sverdrup <bluss@users.noreply.github.com> bluss <bluss@users.noreply.github.com>
 Ulrik Sverdrup <bluss@users.noreply.github.com> Ulrik Sverdrup <root@localhost>
 Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
 Vadim Petrochenkov <vadim.petrochenkov@gmail.com> petrochenkov <vadim.petrochenkov@gmail.com>