Add link to clang-format.exe to ccformat
Add link to clang-format.exe to ccformat

If formatting fails, we would like to have a link to the
clang-format.exe that is being used in the lab so users can easily find
what their code will be tested against.

JosephTremoulet/llilc,BruceForstall/llilc,russellhadley/llilc,swaroop-sridhar/llilc,AndyAyersMS/llilc,BruceForstall/llilc,dotnet/llilc,AndyAyersMS/llilc,dkorolev/llilc,dkorolev/llilc,manu-silicon/llilc,russellhadley/llilc,dotnet/llilc,marksantos/llilc,kyulee1/llilcjit,swaroop-sridhar/llilc,adiaaida/llilc,JosephTremoulet/llilc,kyulee1/llilcjit,russellhadley/llilc,adiaaida/llilc,dotnet/llilc,dkorolev/llilc,manu-silicon/llilc,manu-silicon/llilc,adiaaida/llilc,kyulee1/llilcjit,swaroop-sridhar/llilc,BruceForstall/llilc,marksantos/llilc,AndyAyersMS/llilc,JosephTremoulet/llilc,marksantos/llilc