all: pre-allocated slice with possible known size

This fix is based on suggestion of "prealloc" static analysis tool [1].

Per note of the tool's author suggestion, its recommended to allocate the
slice length/capability, if we known their possible size.  This is to
minimize "append" to re-allocate the slice underlying array.

[1] https://github.com/alexkohler/prealloc

1 files changed, 1 insertions, 1 deletions

diff --git a/fs.go b/fs.go
index 7a73a79..b0f2e76 100644
--- a/fs.go
+++ b/fs.go
@@ -943,7 +943,7 @@ func (h *fsHandler) createDirIndex(base *URI, dirPath string, mustCompress bool)
 	}
 
 	fm := make(map[string]os.FileInfo, len(fileinfos))
-	var filenames []string
+	filenames := make([]string, 0, len(fileinfos))
 	for _, fi := range fileinfos {
 		name := fi.Name()
 		if strings.HasSuffix(name, h.compressedFileSuffix) {