bash-5.2.15

[Bruce Dubbs]

New point version.

[Xi Ruoyao]

Ah, we need to realign all the \ in the command again... It's annoying.

How about move --docdir to the last line?

[Bruce Dubbs]

Bash-5.2 patch 15: fix too-aggressive optimizing forks out of subshell commands
Bash-5.2 patch 14: process additional terminating signals when running 
                   the EXIT trap after a terminating signal
Bash-5.2 patch 13: fix memory leak referencing a nonexistent associative array element
Bash-5.2 patch 12: fixes for compat mode leaving extglob enabled after 
                   command substitution
Bash-5.2 patch 11: reset readline timeout after read -e -t  
Bash-5.2 patch 10: slightly relax check for binary script files

[Bruce Dubbs]

Fixed at commit c9aabf13a1e8e1fb57688a7dea2f2ca2f1a9e1ab

    Ensure a gawk hard link is updated in Chapter 8.
    Update to iana-etc-20221209.
    Update to vim-9.0.1060.
    Update to iproute2-6.1.0.
    Update to xz-5.4.0.
    Update to bash-5.2.15.
    Update to psmisc-23.6.
    Update to mpc-1.3.0.
    Update to python3-3.11.1.
    Update to procps-ng-4.0.2.