common: move expand_destdir to environment/pkg; change lint check.

common/environment/pkg/extglob.sh

@@ -0,0 +1,17 @@
+# This provides the extglob function to expand wildcards in the destdir
+
+expand_destdir() {
+	local glob_list= result= glob= file=
+
+	for glob; do
+		glob_list+=" $DESTDIR/$glob"
+	done
+	shopt -s extglob
+	for file in $glob_list; do
+		result+=" ${file#$DESTDIR/}"
+	done
+	shopt -u extglob
+	echo $result
+}
+
+