DOC: fixed doc-string for combine & combine_first in pandas/core/series.py (#22971)
DOC: fixed doc-string for combine & combine_first in pandas/core/series.py (#22971)


GuessWhoSamFoo/pandas,cbertinato/pandas,gfyoung/pandas,rs2/pandas,toobaz/pandas,TomAugspurger/pandas,MJuddBooth/pandas,GuessWhoSamFoo/pandas,cbertinato/pandas,pandas-dev/pandas,pandas-dev/pandas,dsm054/pandas,cbertinato/pandas,toobaz/pandas,jreback/pandas,jorisvandenbossche/pandas,jreback/pandas,datapythonista/pandas,dsm054/pandas,MJuddBooth/pandas,gfyoung/pandas,cbertinato/pandas,MJuddBooth/pandas,rs2/pandas,toobaz/pandas,GuessWhoSamFoo/pandas,toobaz/pandas,jorisvandenbossche/pandas,datapythonista/pandas,gfyoung/pandas,gfyoung/pandas,MJuddBooth/pandas,cbertinato/pandas,jorisvandenbossche/pandas,MJuddBooth/pandas,toobaz/pandas,datapythonista/pandas,jreback/pandas,gfyoung/pandas,TomAugspurger/pandas,rs2/pandas,GuessWhoSamFoo/pandas,jreback/pandas,pandas-dev/pandas,dsm054/pandas,jreback/pandas,rs2/pandas,dsm054/pandas,jorisvandenbossche/pandas,pandas-dev/pandas,datapythonista/pandas,GuessWhoSamFoo/pandas,TomAugspurger/pandas,TomAugspurger/pandas,dsm054/pandas