Fix broken prototype (issue #51)
Fix broken prototype (issue #51)

ampli/link-grammar,opencog/link-grammar,ampli/link-grammar,linas/link-grammar,MadBomber/link-grammar,linas/link-grammar,MadBomber/link-grammar,MadBomber/link-grammar,MadBomber/link-grammar,MadBomber/link-grammar,ampli/link-grammar,linas/link-grammar,MadBomber/link-grammar,ampli/link-grammar,opencog/link-grammar,linas/link-grammar,ampli/link-grammar,ampli/link-grammar,ampli/link-grammar,linas/link-grammar,linas/link-grammar,ampli/link-grammar,opencog/link-grammar,opencog/link-grammar,opencog/link-grammar,opencog/link-grammar,linas/link-grammar,linas/link-grammar,ampli/link-grammar,linas/link-grammar,MadBomber/link-grammar,opencog/link-grammar,opencog/link-grammar,opencog/link-grammar,MadBomber/link-grammar