Fix whitespace

contrib/tsm_system_rows/tsm_system_rows--1.0.sql

contrib/tsm_system_time/tsm_system_time--1.0.sql

src/backend/access/transam/multixact.c

src/test/modules/test_ddl_deparse/sql/alter_sequence.sql

src/test/modules/test_ddl_deparse/sql/create_extension.sql

src/test/modules/test_ddl_deparse/sql/create_sequence_1.sql

src/test/modules/test_ddl_deparse/sql/opfamily.sql