Update llvm/include/llvm/Pass.h

Co-authored-by: Nikita Popov <[email protected]>

Author: cristianassaiante

llvm/include/llvm/Pass.h

@@ -115,7 +115,7 @@ class LLVM_ABI Pass {
   virtual StringRef getPassName() const;
 
   /// Return a nice clean name for a pass
-  /// corresponding to that used to enable the pass in opt
+  /// corresponding to that used to enable the pass in opt.
   StringRef getPassArgument() const;
 
   /// getPassID - Return the PassID number that corresponds to this pass.