dselect: Fix bashism (“echo -e”) in disk setup method

Closes: #530071

debian/changelog

@@ -4,6 +4,7 @@ dpkg (1.15.2) UNRELEASED; urgency=low
     start-stop-daemon.
   * Remove obsolete priorities support from dselect.
     Thanks to Sven Joachim <svenjoac@gmx.de>.
+  * Fix bashism (“echo -e”) in dselect disk setup method. Closes: #530071
 
   [ Updated dpkg translations ]
   * Asturian (Marcos Alvarez Costales). Closes: #529889

dselect/methods/disk/setup

@@ -45,7 +45,7 @@ print_partition_table()
 {
 	device="$1"
 
-	echo -e "p\nq\n" | fdisk "$device" 2>/dev/null
+	printf "p\nq\n" | fdisk "$device" 2>/dev/null
 }
 
 getblockdev () {