stralloc_0 - append \0 to a stralloc

       stralloc_0 appends \0 to a stralloc.

       It is a shortcut for stralloc_append(sa,"").

       stralloc_0 - append \0 to a stralloc

       1 for success, 0 on memory allocation failure.

stralloc_append(3)

                                                                                                   stralloc_0(3)

#include<libowfat/stralloc.h>

       int stralloc_0(stralloc* sa);