Document axis for swaplevel, standardize elsewhere (#33016)
Document axis for swaplevel, standardize elsewhere (#33016)


pandas-dev/pandas,datapythonista/pandas,jreback/pandas,jorisvandenbossche/pandas,gfyoung/pandas,TomAugspurger/pandas,gfyoung/pandas,jorisvandenbossche/pandas,pandas-dev/pandas,gfyoung/pandas,datapythonista/pandas,pandas-dev/pandas,rs2/pandas,dsm054/pandas,datapythonista/pandas,dsm054/pandas,jorisvandenbossche/pandas,jreback/pandas,dsm054/pandas,gfyoung/pandas,dsm054/pandas,jreback/pandas,TomAugspurger/pandas,TomAugspurger/pandas,jreback/pandas,pandas-dev/pandas,rs2/pandas,gfyoung/pandas,rs2/pandas,jorisvandenbossche/pandas,TomAugspurger/pandas,dsm054/pandas,rs2/pandas,jreback/pandas,datapythonista/pandas