[magic-get] Fix improper direct reference to the "downloads" director…

…y which fails when the downloads directory has been relocated. (microsoft#11581)

ports/magic-get/CONTROL

@@ -1,4 +1,4 @@
 Source: magic-get
-Version: 2019-09-02
+Version: 2019-09-02-1
 Homepage: https://github.com/apolukhin/magic_get
-Description: This C++14 library is meant for accessing structure elements by index and providing other std::tuple like methods for user defined types without any macro or boilerplate code.
+Description: This C++14 library is meant for accessing structure elements by index and providing other std::tuple like methods for user defined types without any macro or boilerplate code.

ports/magic-get/portfile.cmake

@@ -1,9 +1,7 @@
-include(vcpkg_common_functions)
-
 vcpkg_from_github(
 	OUT_SOURCE_PATH SOURCE_PATH
 	REPO apolukhin/magic_get
-	REF abb467c0e22a83bf75a46a9e6610370fabfc39af #Branch develop, Commits on Sep 2, 2019 
+	REF abb467c0e22a83bf75a46a9e6610370fabfc39af #Branch develop, Commits on Sep 2, 2019
 	SHA512 1feb5d105d13a20aec8ab2c748dbd79ecc5d2267c8c0ee7db93a3d0c6b7186ea0c475fdc14712e78502ea839788f6dfb0b359e3fedbec59d331dafe137326fa4
 	HEAD_REF develop
 )
@@ -13,9 +11,9 @@ vcpkg_download_distfile(OCV_DOWNLOAD
     FILENAME "boost_license_1_0.txt"
     SHA512 d6078467835dba8932314c1c1e945569a64b065474d7aced27c9a7acc391d52e9f234138ed9f1aa9cd576f25f12f557e0b733c14891d42c16ecdc4a7bd4d60b8
 )
-	  
-file(COPY ${SOURCE_PATH}/include  DESTINATION ${CURRENT_PACKAGES_DIR})
+
+file(COPY ${SOURCE_PATH}/include DESTINATION ${CURRENT_PACKAGES_DIR})
 
 # Handle copyright
 # On Homepage README.md, License Distributed under the Boost Software License, Version 1.0. https://www.boost.org/LICENSE_1_0.txt
-file(INSTALL ${VCPKG_ROOT_DIR}/downloads/boost_license_1_0.txt DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)
+file(INSTALL ${OCV_DOWNLOAD} DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)