Patch: Escape character troubles (ITS#1753)
================ Written by Hallvard B. Furuseth and placed into the public domain. This software is not subject to any license of the University of Oslo. ================ maildap could address buf[-1] if len was < 2. REWRITE_SUBMATCH_ESCAPE is '%', not '\'. librewrite and saslautz could walk past the end of a string which ended with an escape character. Hallvard B. Furuseth <firstname.lastname@example.org>, April 2002.