message: Fix off-by-one error.
  The created string is one char too large, so it pulls the terminating NULL as
  the last character of the string.  This later causes SocketTest.cpp to fail.
diff: @@ -136,7 +136,7 @@ std::string DomainSocket::GetSocketName() const {
  return std::string(saddr_un.sun_path + GetNameOffset(),
  sock_addr_len -
  offsetof(struct sockaddr_un, sun_path) -
  - GetNameOffset());
  + GetNameOffset() - 1);
  }
  return "";
  }
  