[buffer] Minor

src/hb-buffer-private.hh

diff --git a/src/hb-buffer-private.hh b/src/hb-buffer-private.hh
index d6189d2..c96723a 100644
--- a/src/hb-buffer-private.hh
+++ b/src/hb-buffer-private.hh
@@ -141,9 +141,11 @@
   HB_INTERNAL void swap_buffers (void);
   HB_INTERNAL void clear_output (void);
   HB_INTERNAL void clear_positions (void);
+
   HB_INTERNAL void replace_glyphs (unsigned int num_in,
 				   unsigned int num_out,
 				   const hb_codepoint_t *glyph_data);
+
   HB_INTERNAL void replace_glyph (hb_codepoint_t glyph_index);
   /* Makes a copy of the glyph at idx to output and replace glyph_index */
   HB_INTERNAL void output_glyph (hb_codepoint_t glyph_index);
@@ -196,5 +198,4 @@
 	HB_BUFFER_XALLOCATE_VAR (b, deallocate_var, var (), #var)
 
 
-
 #endif /* HB_BUFFER_PRIVATE_HH */