add_empty_word(): Fix comment indentation
add_empty_word(): Fix comment indentation

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