Fix very confusing indent in Sema.cpp.

This came up during my Euro LLVM 2013 talk on clang-format and I was
asked to submit it :-).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180772 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.cpp b/lib/Sema/Sema.cpp
index 38c5854..e9a8582 100644
--- a/lib/Sema/Sema.cpp
+++ b/lib/Sema/Sema.cpp
@@ -590,12 +590,11 @@
   }
 
   // Remove file scoped decls that turned out to be used.
-  UnusedFileScopedDecls.erase(std::remove_if(UnusedFileScopedDecls.begin(0,
-                                                                         true),
-                                             UnusedFileScopedDecls.end(),
-                              std::bind1st(std::ptr_fun(ShouldRemoveFromUnused),
-                                           this)),
-                              UnusedFileScopedDecls.end());
+  UnusedFileScopedDecls.erase(
+      std::remove_if(UnusedFileScopedDecls.begin(0, true),
+                     UnusedFileScopedDecls.end(),
+                     std::bind1st(std::ptr_fun(ShouldRemoveFromUnused), this)),
+      UnusedFileScopedDecls.end());
 
   if (TUKind == TU_Prefix) {
     // Translation unit prefixes don't need any of the checking below.