Add do { ... } while (0) to more bad macros.

contrib/fuzzystrmatch/fuzzystrmatch.c

contrib/pgcrypto/md5.c

contrib/pgcrypto/sha1.c

contrib/tsearch/query.c

contrib/tsearch/txtidx.c

src/backend/port/dynloader/bsdi.h

src/backend/port/dynloader/linux.h

src/backend/regex/engine.c

src/backend/regex/regexec.c

src/backend/utils/adt/pg_lzcompress.c

src/interfaces/odbc/convert.c

src/interfaces/odbc/iodbc.h

src/tools/find_baddefs