S3: Fix some nonempty blank lines

lib/util/util_net.c

@@ -8,17 +8,17 @@
    Copyright (C) Jim McDonough (jmcd@us.ibm.com)  2003.
    Copyright (C) James J Myers 2003
    Copyright (C) Tim Potter      2000-2001
-    
+
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
-   
+
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
-   
+
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */