syscalls/recvmsg03.c: add new testcase

If the size of address for receiving data is set larger than
actaul size, recvmsg() will set msg_namelen incorrectly.

This bug has been fixed by the following kernel patch:
'commit 06b6a1cf6e77 ("rds: set correct msg_namelen")'

Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
3 files changed