tools: lint for spacing around unary operators

Enable `space-unary-ops` in `.eslintrc`. This prohibits things like:

    i ++        // use `i++` instead
    typeof(foo) // use `typeof foo` or `typeof (foo)` instead

Ref: https://github.com/nodejs/node/pull/4772#discussion_r51732299
PR-URL: https://github.com/nodejs/node/pull/5063
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/test/parallel/test-http-set-trailers.js b/test/parallel/test-http-set-trailers.js
index f3ee5b157f..000df0189a 100644
--- a/test/parallel/test-http-set-trailers.js
+++ b/test/parallel/test-http-set-trailers.js
@@ -33,7 +33,7 @@ server.on('listening', function() {
 
   c.on('end', function() {
     c.end();
-    assert.ok(! /x-foo/.test(res_buffer), 'Trailer in HTTP/1.0 response.');
+    assert.ok(!/x-foo/.test(res_buffer), 'Trailer in HTTP/1.0 response.');
     outstanding_reqs--;
     if (outstanding_reqs == 0) {
       server.close();