Update NSS to 3.21 RTM and NSPR to 4.11 RTM

nspr/pr/src/misc/prinit.c

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* 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/. */
 
 #include "primpl.h"
 #include <ctype.h>
 #include <string.h>
 
 PRLogModuleInfo *_pr_clock_lm;
@@ skipping 624 matching lines @@
     envVar = PR_GetEnv("NSPR_INHERIT_FDS");
     if (NULL == envVar || '\0' == envVar[0]) {
         PR_SetError(PR_UNKNOWN_ERROR, 0);
         return NULL;
     }
 
     ptr = envVar;
     while (1) {
         if ((ptr[len] == ':') && (strncmp(ptr, name, len) == 0)) {
             ptr += len + 1;
-            PR_sscanf(ptr, "%d:0x%" PR_SCNxOSFD, &fileType, &osfd);
+            if (PR_sscanf(ptr, "%d:0x%" PR_SCNxOSFD, &fileType, &osfd) != 2) {
+                PR_SetError(PR_UNKNOWN_ERROR, 0);
+                return NULL;
+            }
             switch ((PRDescType)fileType) {
                 case PR_DESC_FILE:
                     fd = PR_ImportFile(osfd);
                     break;
                 case PR_DESC_PIPE:
                     fd = PR_ImportPipe(osfd);
                     break;
                 case PR_DESC_SOCKET_TCP:
                     fd = PR_ImportTCPSocket(osfd);
                     break;
@@ skipping 171 matching lines @@
     PR_fprintf(
         PR_STDERR, "'%s' is obsolete. Use '%s' instead.\n",
         obsolete, (NULL == preferred) ? "something else" : preferred);
 #endif
     return PR_FALSE;
 }  /* _PR_Obsolete */
 
 /* prinit.c */