dynenv hardening

[Werner Almesberger]

trunk/src/target/u-boot/patches/dynenv-part-name.patch (SVN rev 1067)
makes it a little harder to brick one's system with dynenv:

"dynenv set" can now use partition names, so "dynenv set u-boot_env"
works, no more manual searching through "printenv".

Furthermore, "dynenv set" checks now if it can actually write the
new value. If not, it complains. Before, it would try and fail
silently, possibly making doing a partial change.

- Werner

-- 
  _________________________________________________________________________
 / Werner Almesberger, Buenos Aires, Argentina     werner at almesberger.net /
/_http://www.almesberger.net/____________________________________________/