AVRO-762. C: Fixed segfault in avro_schema_from_json
AVRO-762. C: Fixed segfault in avro_schema_from_json

We were extracting the parse error text incorrectly from the Jansson 
library error struct, which led to a segfault on certain platforms.


git-svn-id: c07a28b12301a3ecdaa1125838bb8d44496e7ec7@1074687 13f79535-47bb-0310-9956-ffa450edef68

dasch/avro,djudd/avro,rdblue/avro-ruby,RallySoftware/avro,ntent-ad/avro,ecatmur/avro,relateiq/avro,wojtkiewicz/avro,Romain-Geissler-1A/avro,st0nx/avro,yadavsaroj/avro,eonezhang/avro,kurtharriger/avro,dasch/avro,restorando/avro,alexanderlz/avro,yadavsaroj/avro,massie/avro,alexanderlz/avro,Yelp/avro,eonezhang/avro,relateiq/avro,alexanderlz/avro,Romain-Geissler-1A/avro,zolyfarkas/avro,apache/avro,djudd/avro,johnj/php5-xcom,restorando/avro,Yelp/avro,wojtkiewicz/avro,massie/avro,ntent-ad/avro,djudd/avro,jmattbeal/avro,ecatmur/avro,relateiq/avro,kurtharriger/avro,djudd/avro,Romain-Geissler-1A/avro,dasch/avro,apache/avro,DrAA/avro,dasch/avro,massie/avro,wojtkiewicz/avro,kurtharriger/avro,relateiq/avro,DrAA/avro,DrAA/avro,kurtharriger/avro,relateiq/avro,bitbouncer/avro,bitbouncer/avro,st0nx/avro,massie/avro,bitbouncer/avro,ecatmur/avro,massie/avro,zolyfarkas/avro,djudd/avro,yadavsaroj/avro,eonezhang/avro,alexanderlz/avro,bitbouncer/avro,eonezhang/avro,jmattbeal/avro,RallySoftware/avro,alexanderlz/avro,alexanderlz/avro,yadavsaroj/avro,rdblue/avro-ruby,alexanderlz/avro,restorando/avro,kurtharriger/avro,Romain-Geissler-1A/avro,zolyfarkas/avro,johnj/php5-xcom,Romain-Geissler-1A/avro,bitbouncer/avro,Yelp/avro,wojtkiewicz/avro,Romain-Geissler-1A/avro,jmattbeal/avro,st0nx/avro,apache/avro,RallySoftware/avro,zolyfarkas/avro,DrAA/avro,jmattbeal/avro,apache/avro,ecatmur/avro,bitbouncer/avro,relateiq/avro,apache/avro,apache/avro,ntent-ad/avro,apache/avro,DrAA/avro,Yelp/avro,yadavsaroj/avro,alexanderlz/avro,jmattbeal/avro,restorando/avro,jmattbeal/avro,kurtharriger/avro,RallySoftware/avro,Romain-Geissler-1A/avro,relateiq/avro,Romain-Geissler-1A/avro,st0nx/avro,ecatmur/avro,st0nx/avro,bitbouncer/avro,restorando/avro,ntent-ad/avro,Yelp/avro,bitbouncer/avro,kurtharriger/avro,jmattbeal/avro,eonezhang/avro,st0nx/avro,wojtkiewicz/avro,massie/avro,Romain-Geissler-1A/avro,eonezhang/avro,Yelp/avro,ntent-ad/avro,kurtharriger/avro,massie/avro,massie/avro,ecatmur/avro,RallySoftware/avro,djudd/avro,yadavsaroj/avro,dasch/avro,DrAA/avro,st0nx/avro,apache/avro,ecatmur/avro,yadavsaroj/avro,st0nx/avro,relateiq/avro,Romain-Geissler-1A/avro,jmattbeal/avro,djudd/avro,yadavsaroj/avro,st0nx/avro,ntent-ad/avro,bitbouncer/avro,kurtharriger/avro,st0nx/avro,relateiq/avro,dasch/avro,yadavsaroj/avro,RallySoftware/avro,restorando/avro,zolyfarkas/avro,Yelp/avro,djudd/avro,ntent-ad/avro,RallySoftware/avro,ntent-ad/avro,RallySoftware/avro,DrAA/avro,djudd/avro,bitbouncer/avro,kurtharriger/avro,DrAA/avro,Yelp/avro,eonezhang/avro,wojtkiewicz/avro,restorando/avro,dasch/avro,eonezhang/avro,zolyfarkas/avro,massie/avro,kurtharriger/avro,zolyfarkas/avro,jmattbeal/avro,eonezhang/avro,restorando/avro,yadavsaroj/avro,jmattbeal/avro,alexanderlz/avro,Romain-Geissler-1A/avro,dasch/avro,bitbouncer/avro,massie/avro,ecatmur/avro,djudd/avro,eonezhang/avro,relateiq/avro,restorando/avro,ntent-ad/avro,yadavsaroj/avro,jmattbeal/avro,dasch/avro,dasch/avro,zolyfarkas/avro,massie/avro,eonezhang/avro,st0nx/avro,massie/avro,Yelp/avro,apache/avro,yadavsaroj/avro,DrAA/avro,kurtharriger/avro,alexanderlz/avro,wojtkiewicz/avro,eonezhang/avro,RallySoftware/avro,apache/avro,Yelp/avro,Yelp/avro,ntent-ad/avro,jmattbeal/avro,wojtkiewicz/avro,apache/avro,Yelp/avro,restorando/avro,wojtkiewicz/avro,DrAA/avro,bitbouncer/avro,alexanderlz/avro,djudd/avro,restorando/avro,restorando/avro,ecatmur/avro,DrAA/avro,dasch/avro,johnj/php5-xcom,ecatmur/avro,djudd/avro,DrAA/avro,ecatmur/avro,wojtkiewicz/avro,apache/avro,dasch/avro,st0nx/avro,zolyfarkas/avro,relateiq/avro,alexanderlz/avro,wojtkiewicz/avro,ecatmur/avro,relateiq/avro,Romain-Geissler-1A/avro,wojtkiewicz/avro,zolyfarkas/avro,zolyfarkas/avro