[Buildroot] [PATCHv2] libevent: Bump to 2.0.21

[Peter Korsgaard]

>>>>> "Mischa" == Mischa Jonker <Mischa.Jonker at synopsys.com> writes:

 Mischa> This fixes the build on ARC as well, as 2.0.17 includes a fix
 Mischa> that checks for existence of 'sysctl'.

 Mischa> v2: Change 2.0.17 to 2.0.21, as that is the latest stable version.

This comment should go under the --- line so it doesn't become part of
the commit message.

Committed with that fixed, thanks.

-- 
Bye, Peter Korsgaard