[cogl_rectangles] A minor doc fix, and missing newline between functions

The gtk-doc had a copy and paste error, saying the float array should be 8
elements per rectangle instead of 4. There was also no newline in the gles
code before the new function.

cogl-texture.h

@@ -488,7 +488,7 @@ void  cogl_rectangles_with_texture_coords (const float *verts,
  * calling cogl_rectangle() separately for each rectangle.
  *
  * @verts should point to an array of #float<!-- -->s with
- * @n_rects * 8 elements. Each group of 4 values corresponds to the
+ * @n_rects * 4 elements. Each group of 4 values corresponds to the
  * parameters x1, y1, x2, and y2, and have the same
  * meaning as in cogl_rectangle().
  *

gles/cogl-texture.c

@@ -2843,6 +2843,7 @@ _cogl_rectangles_with_multitexture_coords (
 
   _cogl_journal_flush ();
 }
+
 void
 cogl_rectangles (const float *verts,
                  guint        n_rects)