Index: src/wp-includes/class-wp-plugin-dependencies.php
===================================================================
--- src/wp-includes/class-wp-plugin-dependencies.php	(revision 57790)
+++ src/wp-includes/class-wp-plugin-dependencies.php	(working copy)
@@ -426,7 +426,7 @@
 			wp_admin_notice(
 				sprintf(
 					'<p>%1$s</p><ul>%2$s</ul><p>%3$s</p>',
-					__( 'These plugins cannot be activated because their requirements are invalid. ' ),
+					__( 'These plugins cannot be activated because their requirements are invalid.' ),
 					$circular_dependency_lines,
 					__( 'Please contact the plugin authors for more information.' )
 				),