Mingw cross compilation error

[bit0fun]

I'm working on cross compiling hiredis on linux to windows with mingw, and found that in sockcompat.h:53, mingw will fail compilation due to Mstcpip.h not being found

Simply changing this to mstcpip.h, compilation succeeds on the master branch without issue.
I didn't want to create a pull request for this change before creating an issue, because I'm not sure if this would affect anything else.

I'm assuming that given windows doesn't care about case for file names that this would not be a problem, but I don't have a development environment for windows to test this out.

[michael-grunder]

Feel free to open a PR and I'll authorize a CI run.

As you said, it's probably fine as Windows is case-insensitive when it comes to filenames.

[bit0fun]

It's such a small change I doubt it would be an issue, but just wanted to check first

Thanks for the quick response! Give me a few and I'll make the pr

[bit0fun]

Almost made identical PR and issue numbers haha

Here's the PR: #1127

[michael-grunder]

Closing via #1127