feature flags set on rev 0 fs

[Chris Meadors]

I'm seeing a new warning with the 2.4.0-prerelease (could have been
introduced in -pre11 or 12):

EXT2-fs warning: feature flags set on rev 0 fs, running e2fsck is recommended

Well I've run e2fsck (version 1.18) twice, and looked at the options for
tune2fs.

Is there an easy way to change the rev of the fs, without a format and
restore?

-Chris
-- 
Two penguins were walking on an iceberg.  The first penguin said to the
second, "you look like you are wearing a tuxedo."  The second penguin
said, "I might be..."                         --David Lynch, Twin Peaks