[p4] Is Sync -f trouble?

[Ken.Williams@thomson.com]

> If you really can't trust your build, then a sync to #none 
> followed by a 
> remove of the offending directory structure followed by a 
> sync to #head 
> is all you need.  The -f is gratuitous.

For better performance, do "p4 flush ...#none" instead of "p4 sync
...#none" as that first step.

 -Ken