Structs starting with `c' in kern

• chdir_args kern/vfs_syscalls.c:510
• chflags_args kern/vfs_syscalls.c:1193
• chmod_args kern/vfs_syscalls.c:1269
• chown_args kern/vfs_syscalls.c:1345
• chroot_args kern/vfs_syscalls.c:540
• close_args kern/kern_descrip.c:320
• connect_args kern/uipc_syscalls.c:256