console: remove spaces for the output is empty

This commit removes extra spaces looking unnecessary if the
`joinedOutput` of type `Array` is empty on `reduceToSingleString`.

e.g) Proxy [  ] -> Proxy []

Signed-off-by: Daeyeon Jeong daeyeon.dev@gmail.com

lib/internal/util/inspect.js

@@ -1939,9 +1939,12 @@ function reduceToSingleString(
                       braces[0].length + base.length + 10;
         if (isBelowBreakLength(ctx, output, start, base)) {
           const joinedOutput = join(output, ', ');
+          const space = joinedOutput.length > 0 ? ' ' : '';
           if (!joinedOutput.includes('\n')) {
-            return `${base ? `${base} ` : ''}${braces[0]} ${joinedOutput}` +
-              ` ${braces[1]}`;
+            return (
+              `${base ? `${base} ` : ''}${braces[0]}${space}${joinedOutput}` +
+              `${space}${braces[1]}`
+            );
           }
         }
       }

test/parallel/test-util-inspect-proxy.js

@@ -70,7 +70,7 @@ assert.strictEqual(details[1], null);
 details = processUtil.getProxyDetails(r.proxy, false);
 assert.strictEqual(details, null);
 
-assert.strictEqual(util.inspect(r.proxy), 'Proxy [  ]');
+assert.strictEqual(util.inspect(r.proxy), 'Proxy []');
 assert.strictEqual(
   util.inspect(r, { showProxy: true }),
   '{ proxy: Proxy [ null, null ], revoke: [Function (anonymous)] }',