Correct Source tag to reflect how to get the tarball

mysql.spec

@@ -1,6 +1,6 @@
 Name: mysql
 Version: 5.1.42
-Release: 4%{?dist}
+Release: 5%{?dist}
 Summary: MySQL client programs and shared libraries
 Group: Applications/Databases
 URL: http://www.mysql.com
@@ -11,7 +11,10 @@ License: GPLv2 with exceptions
 # Regression tests take a long time, you can skip 'em with this
 %{!?runselftest:%global runselftest 1}
 
-Source0: http://dev.mysql.com/get/Downloads/MySQL-5.1/mysql-%{version}.tar.gz
+# Upstream has a mirror redirector for downloads, so the URL is hard to
+# represent statically.  You can get the tarball by following a link from
+# http://dev.mysql.com/downloads/mysql/
+Source0: mysql-%{version}.tar.gz
 Source1: mysql.init
 Source3: my.cnf
 Source4: scriptstub.c
@@ -652,6 +655,9 @@ fi
 %{_mandir}/man1/mysql_client_test.1*
 
 %changelog
+* Wed Jan 20 2010 Tom Lane <tgl@redhat.com> 5.1.42-5
+- Correct Source0: tag and comment to reflect how to get the tarball
+
 * Fri Jan  8 2010 Tom Lane <tgl@redhat.com> 5.1.42-4
 - Disable symbolic links by default in /etc/my.cnf
 Resolves: #553652