Made explicit the root of a relative path to the supervisor executable.
Made explicit the root of a relative path to the supervisor executable.


Former-commit-id: f1c649a6702947d8223c2d7e92d511f5082893d4 [formerly 2bd18fec898b716555ad9f44568bcc77ec07d4e5]
Former-commit-id: fc446207b93b5554607a5dba98bd69233ae52f1c
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine