Space is missing

[kenjis]

It seems every space is converted to -.

Markdown:

#### `TestCase::request($method, $argv, $params = [], $callable = null)`

Generated TOC:

- [`TestCase::request($method, $argv, $params = [], $callable = null)`](#testcaserequestmethod-argv-params-callable-null)

GitHub rendering:

#testcaserequestmethod-argv-params---callable--null