fix test again

Author: eagleoflqj

test/testhallelujah.cpp

@@ -12,7 +12,7 @@ std::vector<std::pair<std::vector<std::string>, std::vector<std::string>>>
         {{"a", "4"}, {"at"}}, // a: exact match; and are at: frequency order.
         {{"a", "space"}, {"a "}},
         {{"a", "Return"}, {"a"}},
-        {{"a", "Down", "space"}, {"at "}},
+        {{"a", "Down", "space"}, {"and "}},
         {{"a", "Up", "Return"}, {"also"}},
         {{"a", "Right", "b", "Left", "Left", "c", "Return"}, {"bac"}},
         {{"a", "Escape"}, {}},