Fix #174: An extra parenthesis in build/cmake.lua
Merge pull request #175 from rtsisyk/gh-174

Fix #174: An extra parenthesis in build/cmake.lua
Symlinks shouldn't refer to DESTDIR.
Patch submitted by Dmitri Paduchikh.
Merge branch 'master' of github.com:keplerproject/luarocks
Merge branch 'master' of github.com:keplerproject/luarocks