avoid int bigger than math.MaxInt32

fix https://github.com/chrislusf/seaweedfs/issues/2363

weed/filer/filer_search.go

@@ -23,15 +23,15 @@ func splitPattern(pattern string) (prefix string, restPattern string) {
 // For now, prefix and namePattern are mutually exclusive
 func (f *Filer) ListDirectoryEntries(ctx context.Context, p util.FullPath, startFileName string, inclusive bool, limit int64, prefix string, namePattern string, namePatternExclude string) (entries []*Entry, hasMore bool, err error) {
 
+	if limit > math.MaxInt32-1 {
+		limit = math.MaxInt32 - 1
+	}
+
 	_, err = f.StreamListDirectoryEntries(ctx, p, startFileName, inclusive, limit+1, prefix, namePattern, namePatternExclude, func(entry *Entry) bool {
 		entries = append(entries, entry)
 		return true
 	})
 
-	if limit == math.MaxInt64 {
-		limit = math.MaxInt64 - 1
-	}
-
 	hasMore = int64(len(entries)) >= limit+1
 	if hasMore {
 		entries = entries[:limit]