Fix comma warning found by ICC

qsql_psql_p.h(122): warning #271: trailing comma is nonstandard

Change-Id: I35e12b2ae0201b8a9905d3505697a9b36a1a79e2
Reviewed-by: Mark Brand <mabrand@mabrand.nl>

src/sql/drivers/psql/qsql_psql_p.h

@@ -119,7 +119,7 @@ public:
         Version82 = 13,
         Version83 = 14,
         Version84 = 15,
-        Version9 = 16,
+        Version9 = 16
     };
 
     explicit QPSQLDriver(QObject *parent=0);