/usr/lib/unity-settings-daemon/unity-settings-daemon-localeexec is in unity-settings-daemon 15.04.1+18.04.20180413-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | #!/bin/sh
SETTING=$(gsettings get org.gnome.system.locale region)
REGION=${SETTING#\'}
REGION=${REGION%\'}
if [ -n "$REGION" ]; then
export LC_TIME=$REGION
export LC_NUMERIC=$REGION
export LC_MONETARY=$REGION
export LC_MEASUREMENT=$REGION
export LC_PAPER=$REGION
fi
if [ -x /usr/bin/ibus-daemon ]; then
export QT_IM_MODULE=ibus
export XMODIFIERS=@im=ibus
fi
exec /usr/lib/unity-settings-daemon/unity-settings-daemon
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