fix doc2vec unit test
fix doc2vec unit test

laic/gensim,loisaidasam/gensim,manasRK/gensim,pombredanne/gensim,markroxor/gensim,gojomo/gensim,tzoiker/gensim,olavurmortensen/gensim,quole/gensim,robotcator/gensim,laic/gensim,piskvorky/gensim,RaRe-Technologies/gensim,akutuzov/gensim,jaksmid/gensim,loisaidasam/gensim,tzoiker/gensim,RaRe-Technologies/gensim,akutuzov/gensim,mattilyra/gensim,bhargavvader/gensim,jaksmid/gensim,ELind77/gensim,akutuzov/gensim,quole/gensim,ziky90/gensim,Kreiswolke/gensim,dsquareindia/gensim,markroxor/gensim,tzoiker/gensim,manasRK/gensim,RaRe-Technologies/gensim,mattilyra/gensim,gojomo/gensim,isohyt/gensim,quole/gensim,ELind77/gensim,gojomo/gensim,manasRK/gensim,ziky90/gensim,bhargavvader/gensim,gojomo/gensim,davechallis/gensim,davechallis/gensim,Kreiswolke/gensim,isohyt/gensim,Kreiswolke/gensim,macks22/gensim,olavurmortensen/gensim,macks22/gensim,bhargavvader/gensim,jaksmid/gensim,zachmayer/gensim,dsquareindia/gensim,davechallis/gensim,ELind77/gensim,robotcator/gensim,dsquareindia/gensim,laic/gensim,robotcator/gensim,pombredanne/gensim,loisaidasam/gensim,mattilyra/gensim,summanlp/gensim,RaRe-Technologies/gensim,macks22/gensim,ziky90/gensim,pombredanne/gensim,zachmayer/gensim,markroxor/gensim,olavurmortensen/gensim,piskvorky/gensim,isohyt/gensim,piskvorky/gensim,summanlp/gensim,summanlp/gensim,zachmayer/gensim