llvm 2.8rc -> 2.8 stealth update

[ryandesign (Ryan Carsten Schmidt)]

Surprisingly, "llvm-config --version" returns "2.8rc", though allegedly version "2.8" is installed:

$ port installed llvm
The following ports are currently installed:
  llvm @2.8_0+clang (active)
$ llvm-config --version
2.8rc

The llvm project has rereleased the 2.8 distfile in a stealth update to correct this problem. Here is the diff​ between the old and new llvm 2.8 distfiles which shows there are no other changes. Here is a patch​ that updates the port.

[mfeiri]

Thanks, will be applied within the next 24

[ryandesign (Ryan Carsten Schmidt)]

Michael fixed this in r72287.