Division by Zero error if blank line in available dimensions setting

I started getting the following error when editing video content types:

Division by zero

LINE: 910
FUNCTION: _video_dimensions_options()
FILE: sites/all/modules/contrib/video/video.field.inc

I traced the cause to the fact that I had an empty line after the last Available dimensions setting. This was causing an empty option to be added to the array returned by video_utility::getDimensions();

Removing the blank line fixed this... but the settings code probably should trim any blank lines.

Here's the stacktrace from the error.

STACKTRACE:
  
Index 	Function called 	Caller line 	Caller file
12	menu_execute_active_handler	21	index.php
11	call_user_func_array	517	includes/menu.inc
10	node_page_edit
9	drupal_get_form	14	modules/node/node.pages.inc
8	drupal_build_form	131	includes/form.inc
7	drupal_process_form	374	includes/form.inc
6	form_builder	842	includes/form.inc
5	form_builder	1857	includes/form.inc
4	form_builder	1857	includes/form.inc
3	form_builder	1857	includes/form.inc
2	video_field_widget_process	1801	includes/form.inc
1	_video_dimensions_options	743	sites/all/modules/contrib/video/video.field.inc
0	_drupal_error_handler	910	sites/all/modules/contrib/video/video.field.inc