README.rst: Trim outdated .EXCLUSIVE snippets

[joshuacwnewton]

I was following the documentation for this project for the first time, but this section confused me a little. It looks like these bits of the documentation got duplicated somehow?

I've kept only the portalocker.LOCK_EX snippet, since it seems to be the only valid flag presently.

[coveralls]

Coverage remained the same at 100.0% when pulling f5823f8 on joshuacwnewton:patch-1 into b47d5f4 on WoLpH:develop.

[coveralls]

Coverage remained the same at 100.0% when pulling f5823f8 on joshuacwnewton:patch-1 into b47d5f4 on WoLpH:develop.

[wolph]

Thank you for the fix :)

That's indeed an oversight during one of the cleanup/refactorings
The EXCLUSIVE flag actually still exists, but it's part of the LockFlags structure so I'll update the documentation with your fix

[joshuacwnewton]

Thank you for the quick response! My apologies for missing that .EXCLUSIVE is still valid (I tried the snippets as-is and got an error, so I assumed). But, I very much appreciate the clarification. :)