libxslt: add test-version.sh

xsltproc doesn't say it's own version but only dependcies it compiled on

Signed-off-by: Seo Suchan <tjtncks@gmail.com>

libs/libxslt/test-version.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# shellcheck shell=busybox
+
+#xsltproc doesn't say it's own version but only depends
+case "$PKG_NAME" in
+xsltproc|libxslt|libexslt)
+	exit 0
+	;;
+
+*)
+	echo "Untested package: $PKG_NAME" >&2
+	exit 1
+	;;
+esac