local/bin/btrfs-snap-all: Reduce gap time to 10 minutes.

.local/bin/btrfs-snap-all

@@ -4,7 +4,7 @@ usage () {
 	cat <<EOF>&2
 Usage: ${0##*/}
 
-Snapshot all Btrfs subvolumes older than 1 day to a read-only '.snapshots/SUBVOLUME/DATE'.
+Snapshot all Btrfs subvolumes older than 10 minutes to a read-only '.snapshots/SUBVOLUME/DATE'.
 
 Options:
 
@@ -64,7 +64,7 @@ for fs in $(findmnt -t btrfs -n --output TARGET); do
 		fi
 		last_date=$(date --date="$last" +%s)
 		now=$(date +%s)
-		if [ $(($now - $last_date)) -gt 86400 ]; then
+		if [ $(($now - $last_date)) -gt 600 ]; then
 			snap "$fs" "$subvol"
 		fi
 		unset now