create: fix archive check if HTML starts with spaces

abitrolly · abitrolly · commit d860fa1fa833 · 2025-05-30T11:12:36.000+03:00
diff --git a/Library/Homebrew/formula_creator.rb b/Library/Homebrew/formula_creator.rb
@@ -84,7 +84,7 @@ def write_formula!
           r.owner = self
           filepath = r.fetch
           html_doctype_prefix = "<!doctype html"
-          if File.read(filepath, html_doctype_prefix.length).downcase.start_with?(html_doctype_prefix)
+          if File.read(filepath, 100).strip.downcase.start_with?(html_doctype_prefix)
             raise "Downloaded URL is not archive"
           end
 
