In non-interactive config, they either return 'success', or do not return.
function old new delta
zbc_posix_error_fmt 41 39 -2
bc_parse_expr_empty_ok 1751 1744 -7
zbc_parse_stmt_possibly_auto 1322 1314 -8
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(add/remove: 5/5 grow/shrink: 0/2 up/down: 118/-135) Total: -17 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>