Generalized function names of x509 functions not parse-specific

x509parse_serial_gets -> x509_serial_gets
x509parse_dn_gets -> x509_dn_gets
x509parse_time_expired -> x509_time_expired
diff --git a/library/x509_crl.c b/library/x509_crl.c
index aa9caea..1a10bc4 100644
--- a/library/x509_crl.c
+++ b/library/x509_crl.c
@@ -621,7 +621,7 @@
 
     ret = snprintf( p, n, "\n%sissuer name   : ", prefix );
     SAFE_SNPRINTF();
-    ret = x509parse_dn_gets( p, n, &crl->issuer );
+    ret = x509_dn_gets( p, n, &crl->issuer );
     SAFE_SNPRINTF();
 
     ret = snprintf( p, n, "\n%sthis update   : " \
@@ -650,7 +650,7 @@
                                prefix );
         SAFE_SNPRINTF();
 
-        ret = x509parse_serial_gets( p, n, &entry->serial);
+        ret = x509_serial_gets( p, n, &entry->serial);
         SAFE_SNPRINTF();
 
         ret = snprintf( p, n, " revocation date: " \