Update tlslite to 0.4.6.

third_party/tlslite/patches/ssl3_padding.patch

Index: third_party/tlslite/patches/ssl3_padding.patch
diff --git a/third_party/tlslite/patches/ssl3_padding.patch b/third_party/tlslite/patches/ssl3_padding.patch
new file mode 100644
index 0000000000000000000000000000000000000000..2c6e28acc616ee5377b225a4021a045e8b01572e
--- /dev/null
+++ b/third_party/tlslite/patches/ssl3_padding.patch
@@ -0,0 +1,18 @@
+diff --git a/third_party/tlslite/tlslite/tlsrecordlayer.py b/third_party/tlslite/tlslite/tlsrecordlayer.py
+index ff08cbf..8b92221 100644
+--- a/third_party/tlslite/tlslite/tlsrecordlayer.py
++++ b/third_party/tlslite/tlslite/tlsrecordlayer.py
+@@ -586,10 +586,10 @@ class TLSRecordLayer(object):
+                 if self.version == (3,2):
+                     b = self.fixedIVBlock + b
+ 
+-                #Add padding: b = b+ (macBytes + paddingBytes)
+-                currentLength = len(b) + len(macBytes) + 1
++                #Add padding: b = b + (macBytes + paddingBytes)
++                currentLength = len(b) + len(macBytes)
+                 blockLength = self._writeState.encContext.block_size
+-                paddingLength = blockLength-(currentLength % blockLength)
++                paddingLength = blockLength - 1 - (currentLength % blockLength)
+ 
+                 paddingBytes = bytearray([paddingLength] * (paddingLength+1))
+                 if self.fault == Fault.badPadding: