"tvb_get_string()" returns a pointer to "g_malloc()"ed data, so you have

"tvb_get_string()" returns a pointer to "g_malloc()"ed data, so you have
to free it when you're done with it.

It never returns a null pointer, however, so there's no need to check
for that.

Clean up the code to process Transfer-Encoding a bit.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@10786 f5534014-38df-0310-8fa8-9805f1628bb7