yoda: Fix yopt --version addition to yopts list

Silly mistake made by previous commit :(

Signed-off-by: Pavel Emelyanov <xemul@sacred.ru>
yoda: Make yopt_realloc_mem as inline

This function is used for pile options, so if such options are absent
gcc will print warning:
‘yopt_realloc_mem’ defined but not used [-Wunused-function]

Signed-off-by: Andrey Vagin <avagin@gmail.com>
Signed-off-by: Pavel Emelyanov <xemul@sacred.ru>