Correct punctuation.

usr.sbin/fdwrite/fdwrite.1

@@ -6,7 +6,7 @@
 .\" this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
 .\" ----------------------------------------------------------------------------
 .\"
-.\" $Id: fdwrite.1,v 1.6 1997/09/18 06:35:51 charnier Exp $
+.\" $Id: fdwrite.1,v 1.7 1998/03/23 08:23:01 charnier Exp $
 .\"
 .\"
 .Dd September 16, 1993
@@ -96,7 +96,7 @@ Some of the code was taken from
 .Xr fdformat 1 .
 .Sh AUTHORS
 The program has been contributed by
-.An Poul-Henning Kamp Aq phk@login.dknet.dk
+.An Poul-Henning Kamp Aq phk@login.dknet.dk .
 .Sh BUGS
 Diagnostics are less than complete at present.
 
@@ -106,7 +106,7 @@ is seekable, it should ask the user to frisbee the disk, insert
 another, and rewind to the right spot and continue.
 
 This concept could be extended to cover non-seekable input also
-by employing a temporary file .
+by employing a temporary file.
 
 An option (defaulting to zero) should allow the user to ask for
 retries in case of failure.
@@ -118,4 +118,4 @@ Programs like
 for instance, will do the job, if the data has not been compressed.
 One can always trust
 .Xr dd 1
-to help out in this situation of course
+to help out in this situation of course.