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.

oberstet/postgres-xl,zeroae/postgres-xl,yazun/postgres-xl,Postgres-XL/Postgres-XL,pavanvd/postgres-xl,zeroae/postgres-xl,ovr/postgres-xl,yazun/postgres-xl,oberstet/postgres-xl,Postgres-XL/Postgres-XL,zeroae/postgres-xl,ovr/postgres-xl,oberstet/postgres-xl,techdragon/Postgres-XL,zeroae/postgres-xl,Postgres-XL/Postgres-XL,yazun/postgres-xl,zeroae/postgres-xl,techdragon/Postgres-XL,oberstet/postgres-xl,pavanvd/postgres-xl,pavanvd/postgres-xl,ovr/postgres-xl,techdragon/Postgres-XL,oberstet/postgres-xl,yazun/postgres-xl,ovr/postgres-xl,techdragon/Postgres-XL,pavanvd/postgres-xl,Postgres-XL/Postgres-XL,pavanvd/postgres-xl,Postgres-XL/Postgres-XL,ovr/postgres-xl,techdragon/Postgres-XL,yazun/postgres-xl