CamelIMAPXServer: added NULL buffer fix (already fixed upstream)
CamelIMAPXServer: added NULL buffer fix (already fixed upstream)

* in camel_imapx_command_close(), account for the fact that a
  CamelStreamMem buffer may be uninitialized
* this has been fixed in 2.32 and above through the use of
  camel_stream_mem_get_byte_array() (which we do not have
  in 2.30 yet)

GNOME/evolution-kolab,GNOME/evolution-kolab