os: fix typo in LFNIndex.h

remove the duplicated "of" in "subdirectories of".

Signed-off-by: Qinghua Jin <qhjin_dev@163.com>

diff --git a/src/os/filestore/LFNIndex.h b/src/os/filestore/LFNIndex.h
index 4efc3130c8e210aa4e6799d5ae052e023f7bdc45..b5a8a7710456045422c3da0a4be3316f2d5074e4 100644 (file)
--- a/src/os/filestore/LFNIndex.h
+++ b/src/os/filestore/LFNIndex.h
@@ -31,7 +31,7 @@
 
 /**
  * LFNIndex also encapsulates logic for manipulating
- * subdirectories of of a collection as well as the long filename
+ * subdirectories of a collection as well as the long filename
  * logic.
  *
  * The protected methods provide machinery for derived classes to