busybox

nslookup: move array of queries to "globals"

function                                             old     new   delta
add_query                                             95      89      -6
nslookup_main                                       2692    2641     -51
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(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-57)             Total: -57 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>