.B ap
program treats each argument as one or more addresses, and
prints those addresses out in the official 822\-format. Hence, it is
-usually best to enclose each argument in double\-quotes for the shell.
+usually best to enclose each argument in quotes for the shell.
.PP
To override the output format used by
.BR ap ,
by the shell that invokes
.BR ap .
Therefore,
-one must usually place the argument to this switch inside double\-quotes.
+one must usually place the argument to this switch inside quotes.