On some versions of GHC, documentation is at, for example:
LIB/share/doc/
In others, it is at:
LIB/share/doc/x86_64-darwin-ghc7.6.3/
This change will pick up documentation first from the second location, then
from the first.
Description
Languages
Nix
96.3%
Shell
1.8%
Python
0.7%
Perl
0.4%
C
0.3%
Other
0.1%