Lowercase pattern range case insensetivity (nocaseglob off)

[Stephan Uphoff]

Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu' 
-DCONF_VENDOR='pc' -DSHELL -DHAVE_CONFIG_H  -D_GNU_SOURCE  -I.  -I. -I./include 
-I./lib -O2 -march=i386 -mcpu=i686
uname output: Linux sunburn 2.4.18-4custom #2 Tue May 21 12:45:22 EDT 2002 i586 
unknown
Machine Type: i686-pc-linux-gnu

Bash Version: 2.05a
Patch Level: 0
Release Status: release

Description:
        Lowercase pattern ranges are not case sensitive if they include more 
than two characters. 
        (nocaseglob  off)
        
Repeat-By:
        mkdir test
        cd test
        touch a B
        echo [a-c]    
        =>   a B       (BUG)
        echo [A-C]
        =>   B         (OK)
        echo [a-b]
        =>   a         (OK)
        echo [ab]
        =>   a         (OK)