StringAnalyzer: fix NRE if hunspell was not enabled
StringAnalyzer: fix NRE if hunspell was not enabled

gabornemeth/vernacular,mightea/vernacular,benoitjadinon/vernacular,benoitjadinon/vernacular,StephaneDelcroix/vernacular,mightea/vernacular,StephaneDelcroix/vernacular,rdio/vernacular,dsuess/vernacular,gabornemeth/vernacular,dsuess/vernacular,rdio/vernacular