Adjust SdBaseFile spacing

Marlin/SdBaseFile.cpp

@@ -1097,8 +1097,9 @@ int16_t SdBaseFile::read(void* buf, uint16_t nbyte) {
  fail:
   return -1;
 }
-//------------------------------------------------------------------------------
+
-/** Read the next directory entry from a directory file.
+/**
+ * Read the next entry in a directory.
  *
  * \param[out] dir The dir_t struct that will receive the data.
  *