inaccurate character class processing

[Iosif Fettich]

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='bash' -DSHELL -DHAVE_CONFIG_H   -I.  -I. -I./include -I./lib 
-g -O2
uname output: Linux pony.netsoft.ro 2.6.32.12-115.fc12.x86_64 #1 SMP Fri 
Apr 30 19:46:25 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux
Machine Type: x86_64-unknown-linux-gnu

Bash Version: 4.1
Patch Level: 0
Release Status: release

Description:

        (I'm not sure if this a bash or a coreutils issue).

        ls [A-Z]*

        doesn't work as expected/documented.
        I'd want/expect it to list the filenames starting with an uppercase 
letter.

        Thank you for looking at it!


Repeat-By:
        In an empty directory, create files like

        touch a A b B z Z

        Now,

        ls [A-Z]*

        outputs

        A  b  B  z  Z

        (why 'b' and 'z' - and/or where's 'a'...?!!)

        and

        ls [a-z]*

        outputs

        a  A  b  B  z

        (why 'A' and 'B' - and/or where's 'Z'...?!!)