[PATCH] msvcrt: Correct return value of ___mb_cur_max_l_func().

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=61916

Your paranoid android.


=== wxppro (32 bit report) ===

msvcr90:
msvcr90: Timeout

=== w2003std (task log) ===

Task errors:
The task timed out

=== wvistau64 (32 bit report) ===

msvcr90:
msvcr90: Timeout

=== w2008s64 (32 bit report) ===

msvcr90:
msvcr90: Timeout

=== w7u (32 bit report) ===

msvcr90:
msvcr90: Timeout

=== wvistau64 (64 bit report) ===

msvcr90:
msvcr90: Timeout

=== w2008s64 (64 bit report) ===

msvcr90:
msvcr90: Timeout