fix a bunch of comment typos found by codespell.  Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129559
diff --git a/clang/lib/Basic/TargetInfo.cpp b/clang/lib/Basic/TargetInfo.cpp
index 078452e..dcf0cb4 100644
--- a/clang/lib/Basic/TargetInfo.cpp
+++ b/clang/lib/Basic/TargetInfo.cpp
@@ -432,7 +432,7 @@
     case ',': // multiple alternative constraint.  Ignore comma.
       break;
     case '?': // Disparage slightly code.
-    case '!': // Disparage severly.
+    case '!': // Disparage severely.
       break;  // Pass them.
     }