fix check of resolve_read exit code

src/lib66/exec/ssexec_env.c

src/lib66/exec/ssexec_resolve.c

src/lib66/exec/ssexec_state.c

src/lib66/exec/ssexec_status.c

src/lib66/exec/ssexec_tree_admin.c

src/lib66/exec/ssexec_tree_resolve.c

src/lib66/exec/ssexec_tree_signal.c

src/lib66/exec/ssexec_tree_status.c

src/lib66/graph/graph_build_tree.c

src/lib66/info/info_graph_display_service.c

src/lib66/info/info_graph_display_tree.c

src/lib66/resolve/resolve_get_field_tosa_g.c

src/lib66/resolve/resolve_modify_field_g.c

src/lib66/sanitize/sanitize_source.c

src/lib66/service/service_graph_collect.c

src/lib66/tree/tree_find_current.c

src/lib66/tree/tree_get_permissions.c

src/lib66/tree/tree_iscurrent.c

src/lib66/tree/tree_isenabled.c

src/lib66/tree/tree_isinitialized.c