Update Sanitizers.h

Author: vitalybuka

clang/include/clang/Basic/Sanitizers.h

@@ -165,7 +165,7 @@ class SanitizerMaskCutoffs {
 
   // Returns nullopt if all the values are zero.
   // Otherwise, return value contains a vector of all the scaled values.
-  std::optional<std::vector<int>> getAllScaled(int ScalingFactor) const;
+  std::optional<std::vector<unsigned>> getAllScaled(unsigned ScalingFactor) const;
 };
 
 struct SanitizerSet {