fsmonitor: s/syscall.CloseOnExec()/unix.CloseOnExec()/g
fsmonitor: s/syscall.CloseOnExec()/unix.CloseOnExec()/g

Signed-off-by: Christian Brauner <72f5e61bb269a7d07dccb60721740ede80850fc9@kernel.org>

stgraber/lxd,hallyn/lxd,stgraber/lxd,hallyn/lxd,lxc/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,stgraber/lxd,lxc/lxd,hallyn/lxd,lxc/lxd,hallyn/lxd,hallyn/lxd,stgraber/lxd,lxc/lxd,lxc/lxd,hallyn/lxd,lxc/lxd,stgraber/lxd