switch to stack_clean_string function

src/lib66/exec/ssexec_remove.c

src/lib66/parse/parse_db_migrate.c

src/lib66/parse/parse_rename_interdependences.c

src/lib66/service/service_db_migrate.c

src/lib66/service/service_enable_disable.c

src/lib66/service/service_graph_build.c

src/lib66/service/service_graph_collect.c

src/lib66/svc/svc_compute_ns.c

src/lib66/svc/svc_unsupervise.c

src/lib66/tree/tree_service_add.c

src/lib66/tree/tree_service_remove.c