Updated to bash 5.2 patch 9 (5.2.9) (from 5.2.2)

The patches fix the following bugs:

Patch 3:
Command substitutions need to preserve newlines instead of replacing
them with semicolons
Patch 4:
Bash needs to keep better track of nested brace expansions to
avoid problems with quoting and POSIX semantics.
Patch 5:
Null pattern substitution replacement strings can cause a crash
Patch 6:
In interactive shells, interrupting the shell while entering a command
substitution can inhibit alias expansion.
Patch 7:
Several problems with alias expansion inside command
substitutions when in POSIX mode
Patch 8:
Array subscript expansion can inappropriately quote brackets
if the expression contains < or >.
Patch 9:
Bash arithmetic expansion should allow `@' and `*' to be used
as associative array keys in expressions.

(kre)