Patch fixes manual page. It moves it to section 3tcl and fixes link to
socket(3tcl) manpage.

--- a/Makefile.in
+++ b/Makefile.in
@@ -225,12 +225,12 @@
 #========================================================================
 
 install-doc: doc
-	@mkdir -p $(DESTDIR)$(mandir)/mann
+	@mkdir -p $(DESTDIR)$(mandir)/man3
 	@echo "Installing documentation in $(DESTDIR)$(mandir)"
 	@list='$(srcdir)/doc/*.n'; for i in $$list; do \
 	    echo "Installing $$i"; \
-	    rm -f $(DESTDIR)$(mandir)/mann/`basename $$i`; \
-	    $(INSTALL_DATA) $$i $(DESTDIR)$(mandir)/mann ; \
+	    rm -f $(DESTDIR)$(mandir)/man3/`basename $$i .n`.3tcl; \
+	    $(INSTALL_DATA) $$i $(DESTDIR)$(mandir)/man3/`basename $$i .n`.3tcl ; \
 	done
 
 test: binaries libraries
--- a/doc/udp.n
+++ b/doc/udp.n
@@ -3,7 +3,7 @@
 '\" Copyright (c) 1999-2000 Columbia University; all rights reserved
 '\"
 .so man.macros
-.TH "udp" n 1.0.11  "Tcl UDP extension"
+.TH "udp" 3tcl 1.0.11 udp "Tcl UDP extension"
 .BS
 .SH NAME
 udp \- Create UDP sockets in Tcl
@@ -198,11 +198,11 @@
 .PP
 Support for IPv6 and allowing a multicast join on a specific network interface is added by Huub Eikens.
 .SH "SEE ALSO"
-socket(n)
+socket(3tcl)
 .SH KEYWORDS
 networking, socket, udp
 .SH COPYRIGHT
 .nf
 Copyright (c) 1999-2000 Columbia University; all rights reserved
 
-.fi
\ No newline at end of file
+.fi