[llvm] [LV][NFC] correct comment for isScalarEpilogueAllowed() (PR #190254)

[Florian Hahn via llvm-commits]

================
@@ -1309,8 +1309,8 @@ class LoopVectorizationCostModel {
     return false;
   }
 
-  /// Returns true if a scalar epilogue is not allowed due to optsize or a
-  /// loop hint annotation.
+  /// Returns true if a scalar epilogue is allowed (i.e., not prevented by
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fhahn wrote:

```suggestion
  /// Returns true if a scalar epilogue is allowed (e.g.., not prevented by
```

might be more accurate, as there are other options/settings that may forbid scalar epilogue

https://github.com/llvm/llvm-project/pull/190254