Added xonsh shell from rindeal repo.

eclass/portage-functions-patched.eclass

@@ -0,0 +1,19 @@
+# Copyright 2016, 2019 Jan Chren (rindeal)
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: portage-functions-patched.eclass
+# @BLURB: Set of portage functions overrides
+
+case "${EAPI:-"0"}" in
+"6" | "7" ) ;;
+* ) die "EAPI='${EAPI}' is not supported by ECLASS='${ECLASS}'" ;;
+esac
+
+
+## Origin: portage - bin/isolated-functions.sh
+rindeal:has() {
+	local -r -- IFS=$'\a'
+
+	[[ "${IFS}${*:2}${IFS}" == *"${IFS}${1}${IFS}"* ]]
+}
+has() { rindeal:has "${@}" ; }