[imp] backends.php overwritten by "pear upgrade"

[Lukas Gradl]

Hi!

I did a "pear upgrade" on my IMP 6.0.0 test machine. Afterwards 
backends.php was overwritten.

AFAIK the config files should be preserved when upgrading - should'nt 
there be a backends.php.dist that ist updated automatically and the 
active copy should'nt be touched?

regards
Lukas