sloccount should be updated to properly handle UTF-8 locales

Package: sloccount
Version: 2.26-2

sloccount generates warnings from perl.

    $ mkdir foo
    $ cd foo
    $ sloccount .
    Creating filelist for foo
    Categorizing files.
    perl: warning: Setting locale failed.
    perl: warning: Please check that your locale settings:
            LANGUAGE = "en_GB:en",
            LC_ALL = (unset),
            LANG = "en_GB"
        are supported and installed on your system.
    perl: warning: Falling back to the standard locale ("C").
    Computing results.

    perl: warning: Setting locale failed.
    perl: warning: Please check that your locale settings:
            LANGUAGE = "en_GB:en",
            LC_ALL = (unset),
            LANG = "en_GB"
        are supported and installed on your system.
    perl: warning: Falling back to the standard locale ("C").
    SLOC Directory SLOC-by-Language (Sorted)
    0 foo (none)
    SLOC total is zero, no further analysis performed.
    $ cd ..
    $ rmdir foo
    $

I think it's because it meddles with $LANG.

    $ awk '/Perl/, /^fi/' /usr/bin/sloccount
    # Perl 5.8.0 handles the "LANG" environment variable oddly;
    # if it includes ".UTF-8" (which is does in Red Hat Linux 9 and others)
    # then it will bitterly complain about ordinary text.
    # So, we'll need to filter ".UTF-8" out of LANG.
    if [ x"$LANG" != x ]
    then
     LANG=`echo "$LANG" | sed -e 's/\.UTF-8//'`
     export LANG
     # echo "New LANG variable: $LANG"
    fi
    $

A simpler example.

    $ perl -w -e 0
    $ LANG=${LANG%.UTF-8} perl -w -e 0
    perl: warning: Setting locale failed.
    perl: warning: Please check that your locale settings:
            LANGUAGE = "en_GB:en",
            LC_ALL = (unset),
            LANG = "en_GB"
        are supported and installed on your system.
    perl: warning: Falling back to the standard locale ("C").
    $

Perhaps it no longer needs to meddle, or its meddling isn't complete
enough.

-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.6.10-5-386
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)

Versions of packages sloccount depends on:
ii libc6 2.3.2.ds1-20ubuntu13 GNU C Library: Shared libraries an
ii perl 5.8.4-6ubuntu1 Larry Wall's Practical Extraction

-- no debconf information