rename contrib/hooks/post-receieve-email to contrib/hooks/post-receive-email.

 $ git grep post-receieve-email
 $ git grep post-receive-email
 templates/hooks--post-receive:#. /usr/share/doc/git-core/contrib/hooks/post-receive-email
 $

Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/contrib/hooks/post-receieve-email b/contrib/hooks/post-receive-email
similarity index 100%
rename from contrib/hooks/post-receieve-email
rename to contrib/hooks/post-receive-email