TFTP transfers are not blocking since 7.20.0

docs/libcurl/libcurl-multi.3

@@ -5,7 +5,7 @@
 .\" *                            | (__| |_| |  _ <| |___
 .\" *                             \___|\___/|_| \_\_____|
 .\" *
-.\" * Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
+.\" * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
 .\" *
 .\" * This software is licensed as described in the file COPYING, which
 .\" * you should have received as part of this distribution. The terms
@@ -138,7 +138,6 @@ the future, you should be aware of the following current restrictions:
  - Active FTP connections
  - HTTP proxy CONNECT operations
  - SOCKS proxy handshakes
- - TFTP transfers
  - file:// transfers
  - TELNET transfers
 .fi