fix buffer overflow bug, if given extremely long dict path names.
fix buffer overflow bug, if given extremely long dict path names.


git-svn-id: fc35eccb03ccef1c432fd0fcf5295fcceaca86a6@22825 bcba8976-2d24-0410-9c9c-aab3bd5fdfd6

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