shellcorona: delete containments in a for loop
as there is always the possibility destroy is a no-op, iterate over containments with a for loop rather than a while
(cherry picked from commit 96be099a)
d1f2a903 shellcorona: delete containments in a for loop 15fc74c7 fix build errors 356bdf37 Apply 1 suggestion(s) to 1 file(s)
Co-authored-by: Marco Martin notmart@gmail.com