Fix invalid parameter passed to WSASendMsg()

[cgutman]

Description

Trivial fix for an invalid parameter we have been passing to WSASendMsg(). I must have had sendmmsg() on the mind when I was writing this because the third parameter is dwFlags not the count of WSAMSG. 1 is MSG_OOB which is invalid for a UDP socket, but apparently we get lucky and WSASendMsg() just ignores it.

Screenshot

Issues Fixed or Closed

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Dependency update (updates to dependencies)
• Documentation update (changes to documentation)
• Repository update (changes to repository files, e.g. .github/...)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the in code docstring/documentation-blocks for new or existing methods/components

Branch Updates

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must be updated before it can be merged. You must also
Allow edits from maintainers.

• I want maintainers to keep my branch updated

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 9.19%. Comparing base (3935d30) to head (f2768d5).

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #2890   +/-   ##
======================================
  Coverage    9.19%   9.19%           
======================================
  Files          97      97           
  Lines       17523   17523           
  Branches     8331    8331           
======================================
  Hits         1611    1611           
+ Misses      13085   13084    -1     
- Partials     2827    2828    +1     

Flag	Coverage Δ
Linux	6.96% <ø> (ø)
Windows	4.51% <0.00%> (ø)
macOS-12	10.31% <ø> (+0.01%)	⬆️
macOS-13	10.22% <ø> (+0.01%)	⬆️
macOS-14	10.53% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
src/platform/windows/misc.cpp	2.17% <0.00%> (ø)

... and 1 file with indirect coverage changes