.SH "SYNOPSIS"
-\fBfinddup\fP [OPTION]... DIR1 [[and:|not:]DIR2]
+\fBfinddup\fP [OPTION]... [DIR1 [[and:|not:]DIR2]]
.SH "DESCRIPTION"
-With a single directory argument, \fBfinddup\fP prints the duplicated
-files found in it.
+With one directory as argument, \fBfinddup\fP prints the duplicated
+files found in it. If no directory is provided, it uses the current
+one as default.
With two directories, it prints either the files common to both DIR1
and DIR2 or, with the `not:' prefix, the ones present in DIR1 and not