Minor coding style fix. NFC.

llvm-svn: 375478
diff --git a/clang/lib/Sema/SemaLambda.cpp b/clang/lib/Sema/SemaLambda.cpp
index 749b0f2..c6b19a0 100644
--- a/clang/lib/Sema/SemaLambda.cpp
+++ b/clang/lib/Sema/SemaLambda.cpp
@@ -444,7 +444,8 @@
   }
 
   auto getMangleNumberingContext =
-      [this](CXXRecordDecl *Class, Decl *ManglingContextDecl) -> MangleNumberingContext * {
+      [this](CXXRecordDecl *Class,
+             Decl *ManglingContextDecl) -> MangleNumberingContext * {
     // Get mangle numbering context if there's any extra decl context.
     if (ManglingContextDecl)
       return &Context.getManglingNumberContext(