Mserver.mx: - if GDKinit returns 0, Monet_init returns NULL and the Mserver will   print the usage message and exit.
Mserver.mx:
- if GDKinit returns 0, Monet_init returns NULL and the Mserver will
  print the usage message and exit.

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb