ble-edit (ble/widget/isearch): fix a bug that isearch does not work in bash-4.4
ble-edit (ble/widget/isearch): fix a bug that isearch does not work in bash-4.4

akinomyoga/ble.sh,akinomyoga/ble.sh,akinomyoga/ble.sh,akinomyoga/ble.sh