Fix typo.

llvm/lib/Transforms/Yk/ModuleClone.cpp

@@ -16,7 +16,7 @@
 //     original names. This distinguishes them from the original functions.
 //
 // - **Clone Process:**
-//   - 1. The orignal model is cloned, creating two copies of the module.
+//   - 1. The orignal module is cloned, creating two copies of the module.
 //   - 2. The functions in the cloned module that satisfy the cloning
 //      criteria are renamed.
 //   - 3. The cloned module is linked back into the original module.