export-noobs: rename Raspbian.png to match NOOBS_NAME

export-noobs/00-release/00-run.sh

@@ -5,7 +5,7 @@ NOOBS_DIR="${STAGE_WORK_DIR}/${IMG_DATE}-${IMG_NAME}${IMG_SUFFIX}"
 install -v -m 744	files/partition_setup.sh	${NOOBS_DIR}/
 install -v		files/partitions.json		${NOOBS_DIR}/
 install -v		files/os.json			${NOOBS_DIR}/
-install -v		files/Raspbian.png		${NOOBS_DIR}/
+install -v		files/OS.png			${NOOBS_DIR}/
 install -v		files/release_notes.txt		${NOOBS_DIR}/
 
 tar -v -c -C		files/marketing			-f ${NOOBS_DIR}/marketing.tar .
@@ -19,6 +19,8 @@ ROOT_SIZE=$(expr ${ROOT_SIZE} / 1000000 \+ 1)
 BOOT_NOM=$(expr ${BOOT_SIZE} \* 3)
 ROOT_NOM=$(expr ${ROOT_SIZE} \+ 400)
 
+mv "${NOOBS_DIR}/OS.png" "${NOOBS_DIR}/$(echo ${NOOBS_NAME} | sed 's/ /_/').png"
+
 sed ${NOOBS_DIR}/partitions.json -i -e "s|BOOT_SIZE|${BOOT_SIZE}|"
 sed ${NOOBS_DIR}/partitions.json -i -e "s|ROOT_SIZE|${ROOT_SIZE}|"