[PATCH] ntdll: Fix handling of DOS style device paths in RtlIsDosDeviceName_U

[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=50856

Your paranoid android.


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

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== w2003std (32 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

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

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== wvistau64_zh_CN (32 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== wvistau64_fr (32 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== wvistau64_he (32 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

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

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

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

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== w7pro64 (32 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== w8 (32 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== w8adm (32 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== w864 (32 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== w1064 (32 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

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

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

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

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== w7pro64 (64 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== w864 (64 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3

=== w1064 (64 bit report) ===

ntdll:
path.c:171: Test failed: Wrong result (0,0)/(8,8) for \\.\com3