Updated format (removed tabs) and added missing copyrights

[SVN r17214]

example/thread_group.cpp

@@ -1,3 +1,14 @@
+// Copyright (C) 2001-2003
+// William E. Kempf
+//
+// Permission to use, copy, modify, distribute and sell this software
+// and its documentation for any purpose is hereby granted without fee,
+// provided that the above copyright notice appear in all copies and
+// that both that copyright notice and this permission notice appear
+// in supporting documentation.  William E. Kempf makes no representations
+// about the suitability of this software for any purpose.
+// It is provided "as is" without express or implied warranty.
+
 #include <boost/thread/thread.hpp>
 #include <iostream>
 
@@ -6,14 +17,14 @@ boost::mutex mutex;
 
 void increment_count()
 {
-   boost::mutex::scoped_lock lock(mutex);
-   std::cout << "count = " << ++count << std::endl;
+    boost::mutex::scoped_lock lock(mutex);
+    std::cout << "count = " << ++count << std::endl;
 }
 
 int main(int argc, char* argv[])
 {
-   boost::thread_group threads;
-   for (int i = 0; i < 10; ++i)
-      threads.create_thread(&increment_count);
-   threads.join_all();
+    boost::thread_group threads;
+    for (int i = 0; i < 10; ++i)
+        threads.create_thread(&increment_count);
+    threads.join_all();
 }