Index: wp-admin/includes/plugin-install.php
===================================================================
--- wp-admin/includes/plugin-install.php	(revision 9220)
+++ wp-admin/includes/plugin-install.php	(working copy)
@@ -332,7 +332,7 @@
 				<td class="name"><?php echo $title; ?></td>
 				<td class="vers"><?php echo $version; ?></td>
 				<td class="vers">
-					<div class="star-holder" title="<?php printf(__ngettext(__('based on %d rating'), __('based on %d ratings'), $plugin['num_ratings']), $plugin['num_ratings']) ?>">
+					<div class="star-holder" title="<?php printf(__ngettext('(based on %d rating)', '(based on %d ratings)', $plugin['num_ratings']), number_format_i18n($plugin['num_ratings'])) ?>">
 						<div class="star star-rating" style="width: <?php echo attribute_escape($plugin['rating']) ?>px"></div>
 						<div class="star star5"><img src="<?php echo admin_url('images/star.gif'); ?>" alt="<?php _e('5 stars') ?>" /></div>
 						<div class="star star4"><img src="<?php echo admin_url('images/star.gif'); ?>" alt="<?php _e('4 stars') ?>" /></div>
@@ -465,7 +465,7 @@
 <?php endif; ?>
 		</ul>
 		<h2><?php _e('Average Rating') ?></h2>
-		<div class="star-holder" title="<?php printf(__('(based on %d ratings)'), $api->num_ratings) ?>">
+		<div class="star-holder" title="<?php printf(__ngettext('(based on %s rating)', '(based on %s ratings)', $api->num_ratings), number_format_i18n($api->num_ratings)); ?>">
 			<div class="star star-rating" style="width: <?php echo attribute_escape($api->rating) ?>px"></div>
 			<div class="star star5"><img src="<?php echo admin_url('images/star.gif'); ?>" alt="<?php _e('5 stars') ?>" /></div>
 			<div class="star star4"><img src="<?php echo admin_url('images/star.gif'); ?>" alt="<?php _e('4 stars') ?>" /></div>
@@ -473,7 +473,7 @@
 			<div class="star star2"><img src="<?php echo admin_url('images/star.gif'); ?>" alt="<?php _e('2 stars') ?>" /></div>
 			<div class="star star1"><img src="<?php echo admin_url('images/star.gif'); ?>" alt="<?php _e('1 star') ?>" /></div>
 		</div>
-		<small><?php printf(__('(based on %d ratings)'), $api->num_ratings) ?></small>
+		<small><?php printf(__ngettext('(based on %s rating)', '(based on %s ratings)', $api->num_ratings), number_format_i18n($api->num_ratings)); ?></small>
 	</div>
 	<div id="section-holder" class="wrap">
 	<?php