Re: [libvirt] [PATCH] vsh: print help more often

> In this case migrate help is printed out. So far so good. > However, you start writing this long migrate command (I bet you > know the arguments there can get quite long), but then, at some > point you need to print out the help. Something like this: > > virsh # migrate --copy-storage-all --migrate-disks --help > > In this specific case you just want to see the format that > --migrate-disks accepts. So you append --help and expect help to > be printed out. Well, it will not, because "--help" is taken as > data to --migrate-disks. But this is the behavior of ALL applications that use getopt_long(): $ ls --block-size --help ls: invalid --block-size argument '--help' NACK; if you use --help in the position where it will be eaten as the argument to an incomplete long option, that's too bad for you, but we shouldn't special case it differently than getopt_long().