Resolve rebase change

Author: tarekgh

src/Microsoft.ML.Tokenizers/PreTokenizer/Roberta.cs

@@ -30,7 +30,7 @@ public override IEnumerable<Split> PreTokenize(string text, bool considerSpecial
                 return Array.Empty<Split>();
             }
 
-            return SplitText(sentence, Tokenizer.P50kBaseRegex());
+            return SplitText(text, Tokenizer.P50kBaseRegex());
         }
     }
 }