use more gnulib modules

* bootstrap: use more gnulib modules: close, connect, perror, recv,
send, socket setsockopt, gethostname.

ChangeLog

+Tue Oct 28 10:22:45 +0100 2008 Jim Meyering <meyering@redhat.com>
+
+	use more gnulib modules
+	* bootstrap: use more gnulib modules: close, connect, perror, recv,
+	send, socket setsockopt, gethostname.
+
 Tue Oct 28 10:22:44 +0100 2008 Jim Meyering <meyering@redhat.com>
 
 	adapt to API change in gnulib

bootstrap

@@ -66,16 +66,25 @@ gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
 
 modules='
 c-ctype
+close
+connect
 getaddrinfo
+gethostname
 getpass
 gettext
 inet_pton
 mkstemp
 mktempd
+perror
 physmem
 poll
 posix-shell
+recv
+send
+setsockopt
+socket
 strndup
+strerror
 strsep
 sys_stat
 useless-if-before-free