explanation


git-svn-id: https://asn1c.svn.sourceforge.net/svnroot/asn1c/trunk@406 59561ff5-6e30-0410-9f3c-9617f08c8826
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+
+The X.509 (PKIX1) certificate decoder. Invoking `make` will compile the ASN.1
+specifications from the RFC3280 in the above directory. This x509dump.c will
+supply the missing "int main()" routine which drives the decoding process.
+