improve style in test, update docs for rsa encryption review
diff --git a/docs/hazmat/primitives/asymmetric/rsa.rst b/docs/hazmat/primitives/asymmetric/rsa.rst
index ed0e100..68ad089 100644
--- a/docs/hazmat/primitives/asymmetric/rsa.rst
+++ b/docs/hazmat/primitives/asymmetric/rsa.rst
@@ -271,7 +271,8 @@
 
         .. versionadded:: 0.4
 
-        Encrypt data using the public key.
+        Encrypt data using the public key. The resulting ciphertext can only
+        be decrypted with the private key.
 
         :param bytes plaintext: The plaintext to encrypt.
 
diff --git a/tests/hazmat/primitives/test_rsa.py b/tests/hazmat/primitives/test_rsa.py
index 2661c1e..adc46de 100644
--- a/tests/hazmat/primitives/test_rsa.py
+++ b/tests/hazmat/primitives/test_rsa.py
@@ -1420,7 +1420,7 @@
         assert recovered_pt == pt
 
     @pytest.mark.parametrize(
-        "key_size,pad",
+        ["key_size", "pad"],
         itertools.product(
             (1024, 1025, 1029, 1031, 1536, 2048),
             (