[clang-format][NFC] Correct comment about checking merging of blocks

[yodaldevoid]

I do not have commit access to the main repo. If someone who does could push it up I would appreciate it.

[MyDeveloperDay]

We need your name and email address to be able to commit as you

[yodaldevoid]

In D116189#3207717, @MyDeveloperDay wrote:

We need your name and email address to be able to commit as you

Ah, right. arcanist should keep that information, but I wish Phabricator would give a way to provide it as well.

At any rate, please use Gabriel Smith <[e-mail]>

[yodaldevoid]

Correct commit email

clang/lib/Format/UnwrappedLineFormatter.cpp

if (Style.BraceWrapping.SplitEmptyRecord &&
             if (PreviousPrevious &&
                 PreviousPrevious->isOneOf(tok::kw_class, tok::kw_struct))
               return 0;
           }
         }
       }
     }
 
-    // Try to merge a block with left brace wrapped that wasn't yet covered
+    // Try to merge a block with left brace unwrapped that wasn't yet covered
     if (TheLine->Last->is(tok::l_brace)) {
       const FormatToken *Tok = TheLine->First;
       bool ShouldMerge = false;
       if (Tok->is(tok::kw_typedef)) {
         Tok = Tok->getNextNonComment();
         assert(Tok);
       }
       if (Tok->isOneOf(tok::kw_class, tok::kw_struct)) {