Added simple example of htonl

git-svn-id: file:///svn/toku/tokudb@16082 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/htonl.c

+#include "test.h"
+
+
+
+int test_main (int argc __attribute__((__unused__)), char *argv[] __attribute__((__unused__))) {
+  uint32_t h,n;
+
+    parse_args(argc, argv);
+
+    for (h = 0; h<4; h++) {
+      n = htonl(h);
+      printf("h = %d, n = %d\n", h,n);
+    }
+    return 0;
+}