(#2266) Update nuspec to what is being used
(#2266) Update nuspec to what is being used

All Chocolatey products are now using log4net 2.0.12, however, the
nuspec file for the chocolatey.lib package still has a reference to the
older 2.0.3 version.

The decision has been taken that this doesn't warrant a new release of
this package.

TheBigBear/choco,TheBigBear/choco,jberezanski/choco,jberezanski/choco,jberezanski/choco,TheBigBear/choco