Add a #ifdef XCP directive the minimal config file.
Add a #ifdef XCP directive the minimal config file.

We did not do this earlier since its a new thing in XL. But "ex" utility on
FreeBSD complains about missing patterns.

arcivanov/postgres-xl,kmjungersen/PostgresXL,snaga/postgres-xl,arcivanov/postgres-xl,snaga/postgres-xl,snaga/postgres-xl,arcivanov/postgres-xl,postmind-net/postgres-xl,kmjungersen/PostgresXL,kmjungersen/PostgresXL,postmind-net/postgres-xl,arcivanov/postgres-xl,arcivanov/postgres-xl,kmjungersen/PostgresXL,snaga/postgres-xl,postmind-net/postgres-xl,postmind-net/postgres-xl,kmjungersen/PostgresXL,postmind-net/postgres-xl,snaga/postgres-xl,arcivanov/postgres-xl