-$SHORT_DOC bg [job_spec]
-Place JOB_SPEC in the background, as if it had been started with
-`&'. If JOB_SPEC is not present, the shell's notion of the current
-job is used.
+$SHORT_DOC bg [job_spec ...]
+Move jobs to the background.
+
+Place the jobs identified by each JOB_SPEC in the background, as if they
+had been started with `&'. If JOB_SPEC is not present, the shell's notion
+of the current job is used.
+
+Exit Status:
+Returns success unless job control is not enabled or an error occurs.