Shorten Spanish key translations in Linux

Change-Id: I3405e0fb4d9d7992d9da15a162311b7a0e75db76
Reviewed-on: https://gerrit.libreoffice.org/10030
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>