Consume tokens matching 0 characters at the end

tests/SlackBuilder/LatestVersionCheckSpec.hs

@@ -41,3 +41,8 @@ spec = do
             let expected = Nothing
                 actual = match "2.6.0-rc1" "2.6.0"
              in actual `shouldBe` expected
+
+        it "consumes the last token matching nothing" $
+            let expected = Just "abc"
+                actual = match "abc\\d\\d" "abc"
+             in actual `shouldBe` expected