hush: if !EDITING, do not regenerate prompt for every input char

function                                             old     new   delta
fgetc_interactive                                    261     258      -3
pseudo_exec_argv                                     406     399      -7
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(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10)             Total: -10 bytes

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