Fix error-checking typo in check_TSCurrentConfig().
Fix error-checking typo in check_TSCurrentConfig().

The code failed to detect an out-of-memory failure.

Xi Wang

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