deploy.sh and dev.sh both ask which app is on screen with
`echo "$FOCUS" | grep -qi`, under the same `set -o pipefail`. $FOCUS is one
line, so echo has always finished writing before grep -q exits and the race
has never been lost — but it is the identical shape that made verify-icon.sh
report a missing file in an APK that contained it. Herestrings, so there is no
writer to kill.
KeelrLeek
a44b4422fd
