[Bug 53998] New: vbscript tests fail in englisch UTF8 locale

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53998

Bug ID: 53998
           Summary: vbscript tests fail in englisch UTF8 locale
           Product: Wine
           Version: 7.22
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: vbscript
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

After #52872 was fixed, we get now test failures.

=== w10pro64_en_AE_u8 (64 bit report) ===

vbscript:
run.c:1206: Test failed: api.vbs: L"Err.number = 0"
run.c:1206: Test failed: api.vbs: L"Err.description = "
run.c:1206: Test failed: api.vbs: L"Err.number = 0"

This happens because chr(-1) now succeeds in utf8 locale.
We need to fix the tests.