[unittests] clang-format a line, NFC
[unittests] clang-format a line, NFC

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@264059 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit a9e82b41a3b79868b6afca83c0b6b2896a0a7159)

apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm