busybox

bc: simplify representation of 0.5 in sqrt()

function                                             old     new   delta
zxc_program_exec                                    4012    4149    +137
zdc_program_printStream                              144       -    -144
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(add/remove: 0/1 grow/shrink: 1/0 up/down: 137/-144)           Total: -7 bytes

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