contrib/reghunt documentation

[Thomas Koenig via Gcc]

Hi,

is there some sort of concise explanation of how to use the
scripts in contrib/reghunt?  There is no real documentation
for what is in the directory, specifically not how to invoke
them, and which directory to invoke them from. I have also
not been able to do run the examples from contrib/reghunt/examples,
let alone my own regression search.