awk: move match() code out-of-line

function                                             old     new   delta
exec_builtin_match                                     -     202    +202
exec_builtin                                        1434    1157    -277
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(add/remove: 1/0 grow/shrink: 0/1 up/down: 202/-277)          Total: -75 bytes

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