Bug#188677: libc6: Ionv doesn't accept NULL outbuf

[Victor Porton <porton@ex-code.com>]

Package: libc6
Version: 2.3.1-16
Severity: normal
X-Debbugs-CC: bugs@gnu.org

iconv() with outbuf == NULL || *outbuf == NULL crashes despite of the
libc.info file permits this case.

-- System Information
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux home.porton.narod.ru 2.4.17 #2 Thu Feb 27 18:06:13 YEKT 2003
i586
Locale: LANG=C, LC_CTYPE=ru_RU.KOI8-R

Versions of packages libc6 depends on:
ii  libdb1-compat                 2.1.3-5    The Berkeley database routines
[gl