Add alias for ISO-8601 stamps in dmesg

dotfiles/bash/main.bashrc

 alias lla='ls -lha'
 alias open='gnome-open'
 alias diff='diff -u'
+alias dmesg='dmesg --time-format iso'
 alias pad4='sed -e "s/^/    /"'
 alias grep='grep --color --binary-files=without-match'
 alias sc='se --direction=encz.cz'