[Yum] yum needs a --ignoresize option

[seth vidal]

> Exactly, we'd like a command-line flag to enable it for a given run of
> yum, not just define it inside the config file for a repo.  We have
> certain RPMs that get updated many times a day (autofs tables and
> sudoers).  We want to ensure they get updated even if a Linux client has
> stale NFS filehandles (which normally causes RPMs to fail installation
> because of the size check).
> 
> Joshua is trying the diskspacecheck=0 config option inside the .repo
> file that is used for these update RPMs (hopefully it's not a global
> option only), but it would be nice if we could set that flag on the
> command-line.

as I said in the bug:

1. it makes no sense to be per-repo the diskspacecheck is a property of
the system, not of the repop
2. adding every little thing to the command line is a rats nest of
maintainability and it makes documentation and  even a simple --help a
nightmare.

-sv