Update NSS to 3.21 RTM and NSPR to 4.11 RTM

nss/lib/util/nssb64e.c

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /*
  * Base64 encoding (binary to ascii).
  */
 
 #include "nssb64.h"
 #include "nspr.h"
@@ skipping 614 matching lines @@
  *
  * Return value is NULL on error, the output buffer (allocated or provided)
  * otherwise.
  */
 char *
 NSSBase64_EncodeItem (PLArenaPool *arenaOpt, char *outStrOpt,
                       unsigned int maxOutLen, SECItem *inItem)
 {
     char *out_string = outStrOpt;
     PRUint32 max_out_len;
-    PRUint32 out_len;
+    PRUint32 out_len = 0;
     void *mark = NULL;
     char *dummy;
 
     PORT_Assert(inItem != NULL && inItem->data != NULL && inItem->len != 0);
     if (inItem == NULL || inItem->data == NULL || inItem->len == 0) {
         PORT_SetError (SEC_ERROR_INVALID_ARGS);
         return NULL;
     }
 
     max_out_len = PL_Base64MaxEncodedLength (inItem->len, 64);
@@ skipping 76 matching lines @@
 }
 
 /*
 ** Convert from binary encoding of an item to ascii.
 */
 char *
 BTOA_ConvertItemToAscii (SECItem *binary_item)
 {
     return NSSBase64_EncodeItem (NULL, NULL, 0, binary_item);
 }