Make comment more meaningful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97169 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfException.cpp b/lib/CodeGen/AsmPrinter/DwarfException.cpp
index 2e10a4a..7920019 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -746,7 +746,8 @@
   unsigned SizeAlign = (4 - TotalSize) & 3;
 
   if (HaveTTData)
-    // Pad here for alignment.
+    // Account for any extra padded that will be added to the call site table
+    // length.
     EmitULEB128(TTypeBaseOffset + SizeAlign, "@TType base offset");
 
   // SjLj Exception handling