Fix a ton of comment typos found by codespell.  Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129558
diff --git a/llvm/utils/lit/setup.py b/llvm/utils/lit/setup.py
index 738ee23..a94e6ea 100644
--- a/llvm/utils/lit/setup.py
+++ b/llvm/utils/lit/setup.py
@@ -38,7 +38,7 @@
 Documentation
 =============
 
-The offical *lit* documentation is in the man page, available online at the LLVM
+The official *lit* documentation is in the man page, available online at the LLVM
 Command Guide: http://llvm.org/cmds/lit.html.