Update JabRef_fr.properties (#2271)
Update JabRef_fr.properties (#2271)

small typo
jhshinn/jabref,mredaelli/jabref,bartsch-dev/jabref,JabRef/jabref,sauliusg/jabref,tobiasdiez/jabref,Siedlerchr/jabref,JabRef/jabref,shitikanth/jabref,zellerdev/jabref,grimes2/jabref,Siedlerchr/jabref,shitikanth/jabref,bartsch-dev/jabref,JabRef/jabref,oscargus/jabref,Siedlerchr/jabref,shitikanth/jabref,jhshinn/jabref,oscargus/jabref,jhshinn/jabref,grimes2/jabref,Mr-DLib/jabref,tobiasdiez/jabref,mredaelli/jabref,grimes2/jabref,Mr-DLib/jabref,zellerdev/jabref,Mr-DLib/jabref,jhshinn/jabref,grimes2/jabref,sauliusg/jabref,Mr-DLib/jabref,sauliusg/jabref,jhshinn/jabref,JabRef/jabref,grimes2/jabref,mredaelli/jabref,tobiasdiez/jabref,mredaelli/jabref,zellerdev/jabref,mredaelli/jabref,bartsch-dev/jabref,tobiasdiez/jabref,sauliusg/jabref,oscargus/jabref,Mr-DLib/jabref,bartsch-dev/jabref,zellerdev/jabref,shitikanth/jabref,shitikanth/jabref,zellerdev/jabref,Siedlerchr/jabref,oscargus/jabref,oscargus/jabref,bartsch-dev/jabref