Fix memory allocation bug in DSA cert validation
Fix memory allocation bug in DSA cert validation

Memory obtained by i2d_X509_CINF must be released by OPENSSL_free.

Fix typo.

google/certificate-transparency,eranmes/certificate-transparency,lexibrent/certificate-transparency,katjoyce/certificate-transparency,RJPercival/certificate-transparency,google/certificate-transparency,phad/certificate-transparency,phad/certificate-transparency,AlCutter/certificate-transparency,eranmes/certificate-transparency,taknira/certificate-transparency,lexibrent/certificate-transparency,taknira/certificate-transparency,taknira/certificate-transparency,pphaneuf/certificate-transparency,katjoyce/certificate-transparency,katjoyce/certificate-transparency,grandamp/certificate-transparency,eranmes/certificate-transparency,grandamp/certificate-transparency,eranmes/certificate-transparency,phad/certificate-transparency,taknira/certificate-transparency,katjoyce/certificate-transparency,taknira/certificate-transparency,eranmes/certificate-transparency,katjoyce/certificate-transparency,AlCutter/certificate-transparency,AlCutter/certificate-transparency,google/certificate-transparency,AlCutter/certificate-transparency,phad/certificate-transparency,RJPercival/certificate-transparency,lexibrent/certificate-transparency,grandamp/certificate-transparency,lexibrent/certificate-transparency,AlCutter/certificate-transparency,google/certificate-transparency,pphaneuf/certificate-transparency,eranmes/certificate-transparency,katjoyce/certificate-transparency,pphaneuf/certificate-transparency,katjoyce/certificate-transparency,eranmes/certificate-transparency,RJPercival/certificate-transparency,grandamp/certificate-transparency,taknira/certificate-transparency,RJPercival/certificate-transparency,taknira/certificate-transparency,pphaneuf/certificate-transparency,AlCutter/certificate-transparency,AlCutter/certificate-transparency