qsort(environ, p - USS environ, sizeof(*p), string_compare_by_pointer);
for (p = USS environ; *p; p++)
{
if (no_labels) *(Ustrchr(*p, '=')) = '\0';
qsort(environ, p - USS environ, sizeof(*p), string_compare_by_pointer);
for (p = USS environ; *p; p++)
{
if (no_labels) *(Ustrchr(*p, '=')) = '\0';