make_squash_message () {
if test -f "$SQUASH_MSG"; then
- COUNT=$(($(sed -n "s/^# This is [^0-9]*\([0-9]\+\).*/\1/p" \
+ COUNT=$(($(sed -n "s/^# This is [^0-9]*\([1-9][0-9]*\).*/\1/p" \
< "$SQUASH_MSG" | tail -n 1)+1))
echo "# This is a combination of $COUNT commits."
sed -n "2,\$p" < "$SQUASH_MSG"