Whitelist SOURCEN to eliminate false detection like the below:

jessp01 · nforro · commit bfa06daefbe4 · 2025-09-16T09:07:46.000+02:00
error: `SOURCEN` should be `SOURCE`
    ╭▸ specfile/spec_parser.py:241:46
    │
241 │             # source references: %SOURCEN, %{SOURCEN}, %{S:N}
    ╰╴                                             ━━━━━━━
diff --git a/_typos.toml b/_typos.toml
@@ -2,3 +2,6 @@
 extend-ignore-re = [
     "From:.*=\\?UTF-8\\?q\\?.*",  # Ignore encoded email headers
 ]
+
+# Allow these as valid words
+extend-words = { SOURCEN = "SOURCEN" }

Original file line number	Diff line number	Diff line change
`@@ -2,3 +2,6 @@`
`2`	`2`	`extend-ignore-re = [`
`3`	`3`	`"From:.=\\?UTF-8\\?q\\?.", # Ignore encoded email headers`
`4`	`4`	`]`
	`5`	`+`
	`6`	`+# Allow these as valid words`
	`7`	`+extend-words = { SOURCEN = "SOURCEN" }`