Less snark in the comments

Wow, I must have been having A Day™ when I wrote this before...

Author: handrews

src/oas.md

@@ -2004,8 +2004,8 @@ multipart/byteranges:
         content:
           text/plain:
             schema:
-              # A suitable "pattern" constraint for this
-              # header is left as an exercise for the reader
+              # The `pattern` regular expression that would
+              # be included in practice is omitted for simplicity
               type: string
 ```