pgsql: For wal_consistency_checking, mask page checksum as well as page

For wal_consistency_checking, mask page checksum as well as page LSN.

If the LSN is different, the checksum will be different, too.

Ashwin Agrawal, reviewed by Michael Paquier and Kuntal Ghosh

Discussion: http://postgr.es/m/CALfoeis5iqrAU-+JAN+ZzXkpPr7+-0OAGv7QUHwFn=-wDy4o4Q@mail.gmail.com

Branch
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REL_10_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/1a44df007c9b9adc5e6082fc90fe68e615d38ecd

Modified Files
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src/backend/access/brin/brin_xlog.c | 2 +-
src/backend/access/common/bufmask.c | 8 +++++---
src/backend/access/gin/ginxlog.c | 2 +-
src/backend/access/gist/gistxlog.c | 4 ++--
src/backend/access/hash/hash_xlog.c | 2 +-
src/backend/access/heap/heapam.c | 2 +-
src/backend/access/nbtree/nbtxlog.c | 2 +-
src/backend/access/spgist/spgxlog.c | 2 +-
src/backend/access/transam/generic_xlog.c | 2 +-
src/backend/commands/sequence.c | 2 +-
src/include/access/bufmask.h | 2 +-
11 files changed, 16 insertions(+), 14 deletions(-)