New comment by jason1987d on void-packages repository

https://github.com/void-linux/void-packages/pull/47317#issuecomment-1817984448

Comment:
> Pull [this patch](https://github.com/darkoperator/dnsrecon/commit/d0507ef2499d9cc3c3354e1c0632cfc5898a9bf3) which removes superfluous runtime dependencies.

Trying to find the correct syntax for the dev diff file here.
```
--- a/requirements.txt	2023-11-19 15:09:58.534925710 -0600
+++ b/requirements-dev.txt	2023-11-19 15:25:45.599952918 -0600
@@ -1,3 +1,5 @@
-dnspython>=2.0.0
-netaddr
-lxml
+-r requirements.txt
+pytest
+black==23.7.0
+flake8==6.1.0
+isort==5.12.0
```