passing a string directly to a routine that expects a format string.
The correct way to handle that is to pass "%s" as the string.
As long as you're escaping non-printable characters, just let
tvb_format_string() handle that.
For null-terminated strings, get the length of the string with
tvb_strsize(), and then just put the string into the protocol tree as a
regular item.
svn path=/trunk/; revision=33482
Alexis La Goutte