webrev suggestion

[Jonathan Gibbons]

In webrev, there is a function "look_for_prog".  This is used to check 
the path and a number of other locations for individual programs.   
These other locations include /java/devtools and other Sun specific 
locations.

It would be nice if the list of locations were configurable.  Locations 
like /java/devtools can be problematic when automount and VPN is involved.

-- Jon