@option{-T0} option or put @code{TABSIZE=0} in your environment, to tell
@command{ls} to align using spaces, not tabs.
-If set a terminal's hardware tabs to anything other than the default,
+If you set a terminal's hardware tabs to anything other than the default,
you should also use a @command{--tabsize} option or @env{TABSIZE}
environment variable either to match the hardware tabs, or to disable
the use of hardware tabs. Otherwise, the output of @command{ls} may