tdf#84881: Fix typo in OID string for id-aa-timeStampToken

Not that it seems to help. Adobe Reader still claims "signing time is from the
clock on the signer's computer".

(Why can't RFCs come with standard C header files (and Java and C# sources)
defining macros/constants for the magic numbers, OIDs etc that the RFC
defines?)

Change-Id: I56e8cb4ef56e20345506a080e4d23764d2dfb956

vcl/source/gdi/pdfwriter_impl.cxx

@@ -6968,7 +6968,7 @@ bool PDFWriterImpl::finalizeSignature()
         // id-aa-timeStampToken OBJECT IDENTIFIER ::= { iso(1)
         // member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9)
         // smime(16) aa(2) 14 }
-        if (my_SEC_StringToOID(NULL, &typetag.oid, "1.2.840.113549.1.9.16.14", 0) != SECSuccess)
+        if (my_SEC_StringToOID(NULL, &typetag.oid, "1.2.840.113549.1.9.16.2.14", 0) != SECSuccess)
         {
             SAL_WARN("vcl.pdfwriter", "SEC_StringToOID failed");
             return false;