app-portage/eix: pass --with-sh-shebang=/bin/sh to configure

Closes: https://bugs.gentoo.org/927510
Signed-off-by: Mike Gilbert <floppym@gentoo.org>

app-portage/eix/eix-0.36.7-r1.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -62,6 +62,7 @@ src_configure() {
 		# paths
 		--with-portage-rootpath="${ROOTPATH}"
 		--with-eprefix-default="${EPREFIX}"
+		--with-sh-shebang="${EPREFIX}/bin/sh"
 
 		# build a single executable with symlinks
 		--disable-separate-binaries