File fix-obsolete-appdata.patch of Package hydrogen

--- a/CMakeLists.txt	2020-09-01 00:04:40.000000000 +0200
+++ b/CMakeLists.txt	2020-11-15 10:56:57.712801770 +0100
@@ -386,7 +386,7 @@ ELSE()
 	INSTALL(DIRECTORY data DESTINATION ${H2_SYS_PATH} PATTERN ".git" EXCLUDE PATTERN "i18n" EXCLUDE PATTERN doc EXCLUDE)
 ENDIF()
 IF(NOT MINGW AND NOT APPLE)
-	INSTALL(FILES ${CMAKE_SOURCE_DIR}/linux/org.hydrogenmusic.Hydrogen.appdata.xml DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/appdata")
+	INSTALL(FILES ${CMAKE_SOURCE_DIR}/linux/org.hydrogenmusic.Hydrogen.appdata.xml DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/metainfo")
 	INSTALL(FILES ${CMAKE_SOURCE_DIR}/linux/org.hydrogenmusic.Hydrogen.desktop DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/applications")
 	INSTALL(FILES ${CMAKE_SOURCE_DIR}/data/img/gray/h2-icon.svg DESTINATION "${CMAKE_INSTALL_FULL_DATAROOTDIR}/icons/hicolor/scalable/apps" RENAME "org.hydrogenmusic.Hydrogen.svg")
 	INSTALL(FILES ${CMAKE_SOURCE_DIR}/linux/hydrogen.1 DESTINATION "${CMAKE_INSTALL_MANDIR}/man1")