bash 4.4-beta chokes on "ulimit --help"

[Keith Thompson]

First off, I'm aware (now) that the ulimit command doesn't accept a
"--help" option. That's not the issue (though I wouldn't mind if it
did).

My OS: Linux Mint 17.3 on x86_64.

I built both versions 4.3.30 and 4.4-beta from source with default
options with gcc 4.8.4.

$ uname -a
Linux bomb20 3.16.0-38-generic #52~14.04.1-Ubuntu SMP Fri May 8
09:43:57 UTC 2015 x86_64 GNU/Linux
$ /_opt/apps/bash-4.3.30/bin/bash -c 'echo $BASH_VERSION ; ulimit --help'
4.3.30(1)-release
/_opt/apps/bash-4.3.30/bin/bash: line 0: ulimit: --: invalid option
ulimit: usage: ulimit [-SHabcdefilmnpqrstuvxT] [limit]
$ /_opt/apps/bash-4.4-beta/bin/bash -c 'echo $BASH_VERSION ; ulimit --help'
4.4.0(1)-beta
/_opt/apps/bash-4.4-beta/bin/bash: xrealloc: ./ulimit.def:382: cannot
allocate 4294967296 bytes (8590045184 bytes allocated)
$

-- 
Keith Thompson <Keith.S.Thompson@gmail.com>