Fix potential memory leak in xmlBufBackToBuffer
This fixes a potential memory leak in xmlBufBackToBuffer of buf.c when buf->error is set.
This patch fixes a relevant bug : Bug 794373 - xmlBufBackToBuffer leaks memory when buf->error is set
This fixes a potential memory leak in xmlBufBackToBuffer of buf.c when buf->error is set.
This patch fixes a relevant bug : Bug 794373 - xmlBufBackToBuffer leaks memory when buf->error is set