Skip directories that are on different filesystems from the one that
the argument being processed is on.
-@item --exclude=@var{PAT}
-@opindex --exclude=@var{PAT}
+@item --exclude=@var{PATTERN}
+@opindex --exclude=@var{PATTERN}
@cindex excluding files from @command{du}
-When recursing, skip subdirectories or files matching @var{PAT}.
+When recursing, skip subdirectories or files matching @var{PATTERN}.
For example, @code{du --exclude='*.o'} excludes files whose names
end in @samp{.o}.