[patch] fix buffer overflow in debugger's socket handler

[Matthias Klose]

Description: buffer not large enough for maximum size of debugger warning.
  (Largest error could be 73 bytes long: "handshake failed - received >Here's
  a poke < - excepted >JDWP-Handshake<")
Ubuntu: https://launchpad.net/bugs/419018
Upstream: https://bugs.openjdk.java.net/show_bug.cgi?id=100103

This should go both to the IC6 trunk and the 1.6 branch.

   Matthias