Correction to SQL Server unit test change

I don't have SQL Server so I checked in a unit tests without running it.  It failed.  I forgot
to do so on a *topic branch* instead of master.

Author: mkleehammer

tests3/sqlservertests.py

@@ -1203,7 +1203,7 @@ def test_row_slicing(self):
 
     def test_row_repr(self):
         self.cursor.execute("create table t1(a int, b int, c int, d varchar(50))");
-        self.cursor.execute("insert into t1 values(1,2,3,4)")
+        self.cursor.execute("insert into t1 values(1,2,3,'four')")
 
         row = self.cursor.execute("select * from t1").fetchone()