LLVM Weekly - #171, Apr 10th 2017

Thanks Andrew, a few people pointed out the mistake and I've updated
the live version (http://llvmweekly.org/issue/171) to point to
r299463. Really I should add a binding to tig that pipes the current
commit to something that scrapes the SVN revision number and sticks
the appropriate link in my clipboard using xclip, thus removing the
potential for human error. If anyone is feeling like playing with that
<https://github.com/jonas/tig/wiki/Bindings>, I'd happily accept such
a contribution to my workflow!