Fixing typo in error for multiple migration conflict.

Signed-off-by: lee Tengum <lee@thatleeguy.com>
diff --git a/system/language/english/migration_lang.php b/system/language/english/migration_lang.php
index af92066..9c8909a 100644
--- a/system/language/english/migration_lang.php
+++ b/system/language/english/migration_lang.php
@@ -27,7 +27,7 @@
 
 $lang['migration_none_found']			= "No migrations were found.";
 $lang['migration_not_found']			= "No migration could be found with the version number: %d.";
-$lang['migration_multiple_version']		= "This are multiple migrations with the same version number: %d.";
+$lang['migration_multiple_version']		= "There are multiple migrations with the same version number: %d.";
 $lang['migration_class_doesnt_exist']	= "The migration class \"%s\" could not be found.";
 $lang['migration_missing_up_method']	= "The migration class \"%s\" is missing an 'up' method.";
 $lang['migration_missing_down_method']	= "The migration class \"%s\" is missing a 'down' method.";