//usage:#define blockdev_trivial_usage
//usage: "OPTION BLOCKDEV"
//usage:#define blockdev_full_usage "\n\n"
-//usage: "Options:"
-//usage: "\n --setro Set ro"
+//usage: " --setro Set ro"
//usage: "\n --setrw Set rw"
//usage: "\n --getro Get ro"
//usage: "\n --getss Get sector size"