seems the dropbear folk forgot to make a .bz2 package this release

package/dropbear/dropbear.mk

@@ -4,10 +4,10 @@
 #
 #############################################################
 DROPBEAR_VER:=0.48
-DROPBEAR_SOURCE:=dropbear-$(DROPBEAR_VER).tar.bz2
+DROPBEAR_SOURCE:=dropbear-$(DROPBEAR_VER).tar.gz
 DROPBEAR_SITE:=http://matt.ucc.asn.au/dropbear/releases/
 DROPBEAR_DIR:=$(BUILD_DIR)/dropbear-$(DROPBEAR_VER)
-DROPBEAR_CAT:=bzcat
+DROPBEAR_CAT:=zcat
 DROPBEAR_BINARY:=dropbearmulti
 DROPBEAR_TARGET_BINARY:=usr/sbin/dropbear