pgsql: Fix an assortment of spelling mistakes and typos

Fix an assortment of spelling mistakes and typos

Author: Alexander Lakhin <exclusion(at)gmail(dot)com>
Discussion: https://postgr.es/m/5812a0b9-b0cf-4151-9a14-d9f00e4f2858@gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/11012c503759f8018d8831bc6eb1f998eba7ad25

Modified Files
--------------
src/backend/access/heap/heapam.c | 2 +-
src/backend/access/heap/pruneheap.c | 2 +-
src/backend/access/nbtree/nbtutils.c | 2 +-
src/backend/access/transam/xlog.c | 2 +-
src/backend/catalog/pg_constraint.c | 2 +-
src/backend/catalog/pg_depend.c | 2 +-
src/backend/catalog/storage.c | 2 +-
src/backend/commands/explain.c | 8 ++++----
src/backend/optimizer/path/indxpath.c | 2 +-
src/backend/postmaster/postmaster.c | 2 +-
src/backend/replication/logical/decode.c | 4 ++--
src/backend/statistics/attribute_stats.c | 2 +-
src/backend/statistics/stat_utils.c | 2 +-
src/backend/storage/lmgr/lock.c | 2 +-
src/backend/utils/adt/cash.c | 2 +-
src/bin/pg_dump/pg_dump.c | 6 +++---
src/bin/pg_rewind/parsexlog.c | 2 +-
src/include/catalog/reformat_dat_file.pl | 2 +-
src/include/commands/copyfrom_internal.h | 2 +-
src/include/jit/SectionMemoryManager.h | 2 +-
src/test/postmaster/t/002_start_stop.pl | 2 +-
21 files changed, 27 insertions(+), 27 deletions(-)