manpages: insert two missing [verse] markers for multi-line SYNOPSIS

manpages: insert two missing [verse] markers for multi-line SYNOPSIS

Found with:

	for i in *.txt; do
		grep -A 2 "SYNOPSIS" "$i" | grep -q "^\[verse\]$" && continue
		multiline=$(grep -A 3 "SYNOPSIS" "$i" | tail -n 1)
		test -n "$multiline" && echo "$i: $multiline"
	done

Signed-off-by: Jonas Fonseca <redacted>
Signed-off-by: Junio C Hamano <redacted>