fix compiler warning
fix compiler warning

inflector/atomspace,tim777z/opencog,ceefour/opencog,eddiemonroe/opencog,sanuj/opencog,jlegendary/opencog,misgeatgit/opencog,printedheart/atomspace,sumitsourabh/opencog,eddiemonroe/opencog,rodsol/opencog,yantrabuddhi/atomspace,sumitsourabh/opencog,misgeatgit/atomspace,Selameab/atomspace,Selameab/opencog,eddiemonroe/opencog,virneo/opencog,jlegendary/opencog,sanuj/opencog,williampma/opencog,shujingke/opencog,sumitsourabh/opencog,gavrieltal/opencog,jswiergo/atomspace,yantrabuddhi/opencog,ArvinPan/atomspace,rohit12/opencog,inflector/opencog,rohit12/opencog,sanuj/opencog,jlegendary/opencog,ruiting/opencog,Tiggels/opencog,printedheart/opencog,prateeksaxena2809/opencog,MarcosPividori/atomspace,jswiergo/atomspace,iAMr00t/opencog,sumitsourabh/opencog,gaapt/opencog,ruiting/opencog,zhaozengguang/opencog,shujingke/opencog,tim777z/opencog,AmeBel/opencog,gaapt/opencog,rodsol/opencog,kinoc/opencog,sanuj/opencog,rTreutlein/atomspace,yantrabuddhi/atomspace,kim135797531/opencog,williampma/opencog,Tiggels/opencog,yantrabuddhi/atomspace,anitzkin/opencog,iAMr00t/opencog,iAMr00t/opencog,rodsol/opencog,rohit12/opencog,UIKit0/atomspace,williampma/atomspace,kim135797531/opencog,UIKit0/atomspace,TheNameIsNigel/opencog,ArvinPan/opencog,jswiergo/atomspace,gaapt/opencog,UIKit0/atomspace,ruiting/opencog,roselleebarle04/opencog,ceefour/opencog,eddiemonroe/opencog,ceefour/atomspace,tim777z/opencog,ceefour/atomspace,ceefour/atomspace,zhaozengguang/opencog,gavrieltal/opencog,ArvinPan/opencog,inflector/opencog,eddiemonroe/atomspace,anitzkin/opencog,ArvinPan/opencog,misgeatgit/atomspace,virneo/atomspace,inflector/atomspace,AmeBel/atomspace,misgeatgit/atomspace,ceefour/opencog,printedheart/opencog,ArvinPan/atomspace,zhaozengguang/opencog,williampma/atomspace,TheNameIsNigel/opencog,ruiting/opencog,rTreutlein/atomspace,iAMr00t/opencog,inflector/atomspace,ceefour/atomspace,roselleebarle04/opencog,misgeatgit/atomspace,AmeBel/opencog,yantrabuddhi/opencog,kim135797531/opencog,zhaozengguang/opencog,Selameab/opencog,prateeksaxena2809/opencog,tim777z/opencog,kinoc/opencog,williampma/opencog,AmeBel/opencog,inflector/opencog,printedheart/atomspace,MarcosPividori/atomspace,kinoc/opencog,cosmoharrigan/atomspace,Selameab/opencog,virneo/atomspace,kim135797531/opencog,eddiemonroe/opencog,gaapt/opencog,williampma/opencog,MarcosPividori/atomspace,shujingke/opencog,roselleebarle04/opencog,prateeksaxena2809/opencog,yantrabuddhi/opencog,misgeatgit/opencog,inflector/opencog,jlegendary/opencog,Allend575/opencog,inflector/opencog,inflector/opencog,zhaozengguang/opencog,sumitsourabh/opencog,Selameab/atomspace,eddiemonroe/atomspace,eddiemonroe/atomspace,cosmoharrigan/opencog,kinoc/opencog,jlegendary/opencog,Selameab/atomspace,ArvinPan/opencog,virneo/opencog,AmeBel/atomspace,andre-senna/opencog,yantrabuddhi/opencog,printedheart/opencog,cosmoharrigan/atomspace,anitzkin/opencog,gavrieltal/opencog,misgeatgit/opencog,anitzkin/opencog,shujingke/opencog,sumitsourabh/opencog,ceefour/opencog,gaapt/opencog,virneo/opencog,rTreutlein/atomspace,yantrabuddhi/opencog,ceefour/opencog,AmeBel/opencog,misgeatgit/opencog,ceefour/opencog,rodsol/opencog,ruiting/opencog,kim135797531/opencog,TheNameIsNigel/opencog,misgeatgit/opencog,eddiemonroe/opencog,tim777z/opencog,cosmoharrigan/opencog,rodsol/opencog,williampma/opencog,misgeatgit/opencog,kinoc/opencog,gavrieltal/opencog,virneo/opencog,kinoc/opencog,rodsol/atomspace,rohit12/atomspace,ceefour/opencog,virneo/atomspace,prateeksaxena2809/opencog,cosmoharrigan/opencog,andre-senna/opencog,ArvinPan/atomspace,williampma/atomspace,ArvinPan/opencog,sanuj/opencog,eddiemonroe/atomspace,rodsol/atomspace,williampma/atomspace,rodsol/opencog,shujingke/opencog,virneo/opencog,rohit12/opencog,inflector/atomspace,printedheart/opencog,virneo/opencog,Selameab/opencog,kim135797531/opencog,Selameab/opencog,printedheart/atomspace,misgeatgit/opencog,roselleebarle04/opencog,Allend575/opencog,AmeBel/opencog,rTreutlein/atomspace,andre-senna/opencog,kim135797531/opencog,Tiggels/opencog,gaapt/opencog,gavrieltal/opencog,kinoc/opencog,shujingke/opencog,eddiemonroe/atomspace,Allend575/opencog,roselleebarle04/opencog,virneo/atomspace,jswiergo/atomspace,gaapt/opencog,yantrabuddhi/atomspace,Allend575/opencog,AmeBel/atomspace,ArvinPan/opencog,printedheart/opencog,Allend575/opencog,misgeatgit/opencog,prateeksaxena2809/opencog,cosmoharrigan/opencog,rohit12/opencog,gavrieltal/opencog,tim777z/opencog,eddiemonroe/opencog,cosmoharrigan/atomspace,Selameab/atomspace,iAMr00t/opencog,rohit12/atomspace,andre-senna/opencog,inflector/opencog,misgeatgit/opencog,yantrabuddhi/opencog,AmeBel/atomspace,prateeksaxena2809/opencog,rTreutlein/atomspace,andre-senna/opencog,cosmoharrigan/atomspace,Allend575/opencog,shujingke/opencog,andre-senna/opencog,rohit12/atomspace,AmeBel/opencog,Selameab/opencog,gavrieltal/opencog,Tiggels/opencog,cosmoharrigan/opencog,roselleebarle04/opencog,MarcosPividori/atomspace,roselleebarle04/opencog,inflector/atomspace,AmeBel/atomspace,rodsol/atomspace,ruiting/opencog,anitzkin/opencog,Tiggels/opencog,TheNameIsNigel/opencog,rohit12/atomspace,anitzkin/opencog,anitzkin/opencog,cosmoharrigan/opencog,rodsol/atomspace,andre-senna/opencog,misgeatgit/atomspace,iAMr00t/opencog,zhaozengguang/opencog,printedheart/opencog,yantrabuddhi/atomspace,yantrabuddhi/opencog,UIKit0/atomspace,sanuj/opencog,printedheart/atomspace,rohit12/opencog,jlegendary/opencog,virneo/opencog,ArvinPan/atomspace,inflector/opencog,TheNameIsNigel/opencog,prateeksaxena2809/opencog,TheNameIsNigel/opencog,Allend575/opencog,jlegendary/opencog,AmeBel/opencog,sumitsourabh/opencog,williampma/opencog,Tiggels/opencog,ruiting/opencog