crypto: don't use transitionary ThrowException

Since the current environment is in scope use ThrowError on that,
instead of having to lookup the Environment again.

Added benefit, lint the source code.

Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Julien Gilli <julien.gilli@joyent.com>

Author: tjfontaine

src/node_crypto.cc

@@ -344,19 +344,19 @@ void SecureContext::Init(const FunctionCallbackInfo<Value>& args) {
 #ifndef OPENSSL_NO_SSL3
       method = SSLv3_method();
 #else
-      return ThrowException(Exception::Error(String::New("SSLv3 methods disabled")));
+      return env->ThrowError("SSLv3 methods disabled");
 #endif
     } else if (strcmp(*sslmethod, "SSLv3_server_method") == 0) {
 #ifndef OPENSSL_NO_SSL3
       method = SSLv3_server_method();
 #else
-      return ThrowException(Exception::Error(String::New("SSLv3 methods disabled")));
+      return env->ThrowError("SSLv3 methods disabled");
 #endif
     } else if (strcmp(*sslmethod, "SSLv3_client_method") == 0) {
 #ifndef OPENSSL_NO_SSL3
       method = SSLv3_client_method();
 #else
-      return ThrowException(Exception::Error(String::New("SSLv3 methods disabled")));
+      return env->ThrowError("SSLv3 methods disabled");
 #endif
     } else if (strcmp(*sslmethod, "SSLv23_method") == 0) {
       method = SSLv23_method();