Alexander Neumann 4fb846bd44
[vcpkg] add environment variable VCPKG_OVERLAY_PORTS (#12640)
* [vcpkg] add environment variable VCPKG_OVERLAY_PORTS

* add documentation for VCPKG_OVERLAY_PORTS

* append env overlay instead of prepending to give explicitly listed overlays priority

* fix formating (manually)

* manually fixing formating

* improve help text

Co-authored-by: ras0219 <533828+ras0219@users.noreply.github.com>

Co-authored-by: ras0219 <533828+ras0219@users.noreply.github.com>
2020-08-05 11:21:42 -07:00
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