audit: fix line number typo.

Closes Homebrew/homebrew#32031.

Library/Homebrew/cmd/audit.rb

@@ -567,7 +567,7 @@ class FormulaAuditor
     audit_conflicts
     audit_patches
     audit_text
-    text.split("\n").each_with_index { |line, lineno| audit_line(line+1, lineno) }
+    text.split("\n").each_with_index {|line, lineno| audit_line(line, lineno+1) }
     audit_installed
   end