Add return value to pthread test function

TestPrograms/test_pthreads.cxx

@@ -1,14 +1,15 @@
-#include <string>
+#include <string>
-#include <pthreads.h>
+#include <pthread.h>
-
+
-void* function(void *ptr)
+void* function(void *ptr)
-{
+{
-}
+	return 0;
-
+}
-int main(int argc, char* argv[])
+
-{
+int main(int argc, char* argv[])
-	pthread_t thread;
+{
-	int ret = pthread_create(&thread, NULL, function, (void*)0);
+	pthread_t thread;
-	pthread_join(thread, NULL);
+	int ret = pthread_create(&thread, NULL, function, (void*)0);
-	return 0;
+	pthread_join(thread, NULL);
-}
+	return 0;
+}