Fix exit code on app_exit
Fix exit code on app_exit

The app_exit function needs to return 0, otherwise the
return code will cause kubernetes jobs to run repeatedly.

tmckayus/oshinko-s2i,rimolive/oshinko-s2i,tmckayus/oshinko-s2i,rimolive/oshinko-s2i,rimolive/oshinko-s2i,tmckayus/oshinko-s2i