executeQuery in i18n regex not working 100%

When doing a query containing table name that contains another table name, i18n::rewriteQuery sometimes fail to properly convert the name to the i18n equivalent.

Example that fails :

• civicrm_events_in_cart => civicrm_event_fr_CAs_in_cart (should not be changed)
• civicrm_groupprice (cf. https://github.com/zengenuity/civicrm_groupprice/issues/2) => civicrm_group_fr_CAprice (should not be changed)

My colleague Stephane has done a quick fix that will need extra testing :
CRM/Core/I18n/Schema.php:364

-  $query = preg_replace("/([^'\"])({$table})([^_'\"])/", "\\1\\2{$dbLocale}\\3", $query);
+  $query = preg_replace("/([^'\"])({$table})([^a-z_'\"])/", "\\1\\2{$dbLocale}\\3", $query);