Documentation fixes

Rephrase documentation of the SAN to make it clearer.
diff --git a/library/x509_crt.c b/library/x509_crt.c
index 3b68f01..701b014 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -618,8 +618,8 @@
  *      nameAssigner            [0]     DirectoryString OPTIONAL,
  *      partyName               [1]     DirectoryString }
  *
- * NOTE: we only parse and use dNSName at this point,
- * and otherName of type HwModuleName, as defined in RFC 4108.
+ * NOTE: we list all types, but only use dNSName and otherName
+ * of type HwModuleName, as defined in RFC 4108, at this point.
  */
 static int x509_get_subject_alt_name( unsigned char **p,
                                       const unsigned char *end,