Re: Non-text mode for pg_dumpall

hi.
The four patches attached are to solve the
TODO1: We need to think for --exclude-database=PATTERN for pg_restore.
it is based on your v11_pg_dumpall-with-directory-tar-custom-format-21-jan.patch

0001. pg_dumpall --exclude-database=PATTERN already works,
main function resolve pattern matching is expand_dbname_patterns.
make it an extern function, so pg_restore --exclude-database can also use it.

0002 cosmetic code changes not in pg_restore.c
0003 cosmetic code changes in pg_restore.c

0004 fully implement pg_restore --exclude-database=PATTERN
similar to pg_dumpall.c
declare two file static variables:
static SimpleStringList database_exclude_names = {NULL, NULL};
static SimpleStringList db_exclude_patterns = {NULL, NULL};
I also deleted the function is_full_pattern.

I use
$BIN10/pg_restore --exclude-database=*x* --exclude-database=*s*
--exclude-database=*t* --verbose --file=test.sql x1.dump
the verbose message to verify my changes.