fix haproxy::globals::sort_options_alphabetic not being respected

[1u1-sdoering]

Summary

I believe commit e0835f8 and its siblings (if any) to be in error.

Additional Context

When specifying "haproxy::globals::sort_options_alphabetic: false" it will be overwritten/ignored by

Boolean                                 $sort_options_alphabetic  = true,

with

$_sort_options_alphabetic = pick($sort_options_alphabetic, $haproxy::globals::sort_options_alphabetic)

pick() according to documentation:
"Returns: Any the first value in a list of values that is not undefined or an empty string.

If sort_options_alphabetic isn't specifically passed into a listen resource we want to global value to be applied.

Current version of haproxy ignores the global and shuffled all my entries into alphabetical order.

Checklist

• 🟢 Spec tests.
• 🟢 Acceptance tests.
• Manually verified. (For example puppet apply)

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