gitea/modules/markup
mappu fd76f090a2 markup: microoptimise for many short filenames in directory ()
* markup: microoptimise for many short filenames in directory

Move strings.ToLower() after the early-return length check. This is a safe operation in all cases and should slightly improve directory listing performance when a directory contains many thousands of files with short filenames.

* markup: expand test cases for IsReadmeFile()
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markup.go markup: microoptimise for many short filenames in directory ()
markup_test.go markup: microoptimise for many short filenames in directory ()