Update llvm-rebuild-trigger in light of LLVM 7 upgrade#52322
Merged
bors merged 1 commit intorust-lang:masterfrom Jul 13, 2018 
Merged
Update llvm-rebuild-trigger in light of LLVM 7 upgrade#52322bors merged 1 commit intorust-lang:masterfrom 
bors merged 1 commit intorust-lang:masterfrom