Missing options in ulimit usage string

[Jessica T McKellar]

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-unknown-linux-gnu' 
-DCONF_VENDOR='unknown' -DLOCALEDIR='/usr/local/share/locale' 
-DPACKAGE='bas$
uname output: Linux kid-charlemagne 2.6.38-10-generic #46-Ubuntu SMP Tue 
Jun 28 15:07:17 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
Machine Type: x86_64-unknown-linux-gnu

Bash Version: 4.2
Patch Level: 0
Release Status: release

Description:

`help ulimit` is missing the -b option in the usage string and is 
missing the -T option in both the usage string and the Options section of 
the help description. doc/FAQ in the bash 4.2 source tarball says both 
options were added in bash 4.0.

Repeat-By:

Run `help ulimit` and note that -b is listed in the Options 
section but not the usage string. Then look at doc/FAQ or the ulimit 
source and note that -T also exists but isn't documented.

Fix:

Attached is a patch to add usage documentation for -b and -T. I wasn't 
sure what to do about internationalization for the new text, so I left 
that alone for now.

Having the usage string and Options match is an improvement, but it's a 
little confusing that you get an "invalid option" message when you use an 
option that isn't available on your platform, e.g.:

$ ulimit -b
bash: ulimit: -b: invalid option
ulimit: usage: ulimit [-SHabcdefilmnpqrsTtuvx] [limit]

To minimally address this I added a note in the help documentation that 
not all options are available on all platforms, but a more precise error 
message when using an option that doesn't exist on your platform would be 
better.

Best regards,
-Jessica

ulimit-opts.patch
Description: Text Data