Update NSS to 3.38

- Added HACL*Poly1305 32-bit (INRIA/Microsoft)
- Updated to final TLS 1.3 draft version (28)
- Removed TLS 1.3 prerelease draft limit check
- Removed NPN code
- Enabled dev/urandom-only RNG on Linux with NSS_SEED_ONLY_DEV_URANDOM for non-standard environments
- Fixed several bugs with TLS 1.3 negotiation
- Updated internal certificate store
- Added support for the TLS Record Size Limit Extension.
- Fixed CVE-2018-0495
- Various security fixes in the ASN.1 code.

security/nss/cpputil/databuffer.cc

@@ -18,12 +18,12 @@
 
 namespace nss_test {
 
-void DataBuffer::Assign(const uint8_t* data, size_t len) {
-  if (data) {
-    Allocate(len);
-    memcpy(static_cast<void*>(data_), static_cast<const void*>(data), len);
+void DataBuffer::Assign(const uint8_t* d, size_t l) {
+  if (d) {
+    Allocate(l);
+    memcpy(static_cast<void*>(data_), static_cast<const void*>(d), l);
   } else {
-    assert(len == 0);
+    assert(l == 0);
     data_ = nullptr;
     len_ = 0;
   }