style guide change (filename instead of file name) part of the Write the Docs...

style guide change (filename instead of file name) part of the Write the Docs 2020 Writing Day, https://gitlab.com/gitlab-org/technical-writing/-/issues/217

doc/user/application_security/dast/index.md

@@ -460,9 +460,9 @@ DAST can be [configured](#customizing-the-dast-settings) using environment varia
 | `DAST_REQUEST_HEADERS` | string | Set to a comma-separated list of request header names and values. Headers will be added to every request made by DAST. For example, `Cache-control: no-cache,User-Agent: DAST/1.0` |
 | `DAST_DEBUG` | boolean | Enable debug message output. Default: `false` |
 | `DAST_SPIDER_MINS` | number | The maximum duration of the spider scan in minutes. Set to `0` for unlimited. Default: One minute, or unlimited when the scan is a full scan. |
-| `DAST_HTML_REPORT` | string | The file name of the HTML report written at the end of a scan. |
-| `DAST_MARKDOWN_REPORT` | string | The file name of the Markdown report written at the end of a scan. |
-| `DAST_XML_REPORT` | string | The file name of the XML report written at the end of a scan. |
+| `DAST_HTML_REPORT` | string | The filename of the HTML report written at the end of a scan. |
+| `DAST_MARKDOWN_REPORT` | string | The filename of the Markdown report written at the end of a scan. |
+| `DAST_XML_REPORT` | string | The filename of the XML report written at the end of a scan. |
 | `DAST_INCLUDE_ALPHA_VULNERABILITIES` | boolean | Set to `true` to include alpha passive and active scan rules. Default: `false` |
 | `DAST_USE_AJAX_SPIDER` | boolean | Set to `true` to use the AJAX spider in addition to the traditional spider, useful for crawling sites that require JavaScript. Default: `false` |
 | `DAST_ZAP_CLI_OPTIONS` | string | ZAP server command-line options. For example, `-Xmx3072m` would set the Java maximum memory allocation pool size. |