Extract creation of time from if-Statements

Author: lauft

src/Datetime.cpp

@@ -1464,7 +1464,6 @@ bool Datetime::initializeOrdinal (Pig& pig)
           t->tm_mday = number;
           t->tm_year = y - 1900;
           t->tm_isdst = -1;
-          _date = mktime (t);
         }
         else
         {
@@ -1479,9 +1478,10 @@ bool Datetime::initializeOrdinal (Pig& pig)
           t->tm_mday = number;
           t->tm_year = y - 1900;
           t->tm_isdst = -1;
-          _date = mktime (t);
         }
 
+        _date = mktime (t);
+
         return true;
       }
     }