hush: fix var_LINENO3.tests failure

function                                             old     new   delta
parse_and_run_string                                  40      62     +22
i_getch                                              105     102      -3
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(add/remove: 0/0 grow/shrink: 1/1 up/down: 22/-3)              Total: 19 bytes

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