Resolve comment.

Author: CXuesong

xml/System.Security.Cryptography/RSACng.xml

@@ -363,7 +363,7 @@ If a key is loaded via the <xref:System.Security.Cryptography.RSACng.ImportParam
 
  <paramref name="padding" /> is <see langword="null" />.</exception>
         <exception cref="T:System.Security.Cryptography.CryptographicException">
-          <paramref name="padding" /> does not equal <see cref="P:System.Security.Cryptography.RSAEncryptionPadding.Pkcs1" />, or else the <see cref="P:System.Security.Cryptography.RSAEncryptionPadding.Mode" /> of <paramref name="padding" /> does not equal <see cref="F:System.Security.Cryptography.RSAEncryptionPaddingMode.Oaep" />.</exception>
+          <paramref name="padding" />.<see cref="P:System.Security.Cryptography.RSAEncryptionPadding.Mode" /> isn't equal to <see cref="F:System.Security.Cryptography.RSAEncryptionPaddingMode.Pkcs1" /> or <see cref="F:System.Security.Cryptography.RSAEncryptionPaddingMode.Oaep" />.</exception>
       </Docs>
     </Member>
     <Member MemberName="EncryptValue">