Update golang.org/x/sys to 07c182904dbd53199946ba614a412c61d3c548f5 in
order to get the newly added Windows event functions which will be used
in successive commits.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Update golang.org/x/sys to 739734461d1c916b6c72a63d7efda2b27edb369f in
order to get the Lgetxattr, Llistxattr, Lremovexattr and Lsetxattr
syscall wrappers. These will be used in a successive commit to replace
the wrappers in libcontainer/system/xattr_linux.go.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>