When using etcupdate, I find it tedious to answer "install new version" for 
all the files that have distribution changes but have no local modifications.  
These can normally be installed without further investigation.  I therefore 
added code to etcupdate to save a checksum (of the distribution file) for 
each file it installs and to use that checksum in order to determine if local 
modifications have been made the next time I update.  If not locally 
modified, a new flag "-f", will cause it to install files without prompting.  
I find that this cuts down the number of etcupdate install prompts to a 
handful.

It would be nice if the etcupdate command could be used on upgrades (as well 
as updates).

If the checksums were included in the files themselves this procedure could be 
simplified further.

Sverre