file extension should be .gz not .bz2

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@265 42af7a65-404d-4744-a932-0658087f49c3

tools/zipme.sh

@@ -85,7 +85,7 @@ if [ ! -d ${NUTTXDIR} ] ; then
 fi
 
 TAR_NAME=nuttx-${DATECODE}.tar
-ZIP_NAME=${TAR_NAME}.bz2
+ZIP_NAME=${TAR_NAME}.gz
 
 # Prepare the nuttx directory -- Remove editor garbage