test: fix misplaced ) in http response statuscode test

This fixes a misplaced parenthesis in each of the tests in
test/parallel/test-http-response-statuscodes.js, causing the tests to
pass as long as any error was thrown, without validating the error
message.

PR-URL: nodejs#10692
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michal Zasso <targos@protonmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/parallel/test-http-response-statuscode.js

@@ -11,62 +11,62 @@ const server = http.Server(common.mustCall(function(req, res) {
     case 0:
       assert.throws(common.mustCall(() => {
         res.writeHead(-1);
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 1:
       assert.throws(common.mustCall(() => {
         res.writeHead(Infinity);
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 2:
       assert.throws(common.mustCall(() => {
         res.writeHead(NaN);
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 3:
       assert.throws(common.mustCall(() => {
         res.writeHead({});
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 4:
       assert.throws(common.mustCall(() => {
         res.writeHead(99);
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 5:
       assert.throws(common.mustCall(() => {
         res.writeHead(1000);
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 6:
       assert.throws(common.mustCall(() => {
         res.writeHead('1000');
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 7:
       assert.throws(common.mustCall(() => {
         res.writeHead(null);
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 8:
       assert.throws(common.mustCall(() => {
         res.writeHead(true);
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 9:
       assert.throws(common.mustCall(() => {
         res.writeHead([]);
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 10:
       assert.throws(common.mustCall(() => {
         res.writeHead('this is not valid');
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       break;
     case 11:
       assert.throws(common.mustCall(() => {
         res.writeHead('404 this is not valid either');
-      }, /invalid status code/i));
+      }), /invalid status code/i);
       this.close();
       break;
     default: