net: lwip/wget: missing linefeed in diagnostic output

net: lwip/wget: missing linefeed in diagnostic output

With NET_LWIP wget produces this output with an overlong line
and missing white space:

    => wget $kernel_addr_r http://example.com/
    #################################################  4 GiB540 bytes transferred in 2 ms (263.7 KiB/s)
    Bytes transferred = 540 (21c hex)

Removing the condition on inserting a line feed yields:

    => wget $kernel_addr_r http://example.com/
    #################################################  4 GiB
    540 bytes transferred in 2 ms (263.7 KiB/s)
    Bytes transferred = 540 (21c hex)

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Jerome Forissier <jerome.forissier@arm.com>