Add warning about backing up database

This was just a suggestion as per this discussion:
http://civicrm.stackexchange.com/questions/3644/error-uploading-civicrm-contacts-can-i-revert

diff --git a/templates/CRM/Contact/Import/Form/Preview.tpl b/templates/CRM/Contact/Import/Form/Preview.tpl
index a144d46331f71c24a11e8adc1f1674262158723a..e70f2e91bf8de29d8dcb65afceda46c5d84b130d 100644 (file)
--- a/templates/CRM/Contact/Import/Form/Preview.tpl
+++ b/templates/CRM/Contact/Import/Form/Preview.tpl
@@ -47,7 +47,7 @@ function pollLoop( ){
 }
 
 function verify( ) {
-    if (! confirm('{/literal}{ts escape='js'}Are you sure you want to Import now{/ts}{literal}?') ) {
+    if (! confirm('Backing up your database before importing is recommended, as there is no Undo for this. {/literal}{ts escape='js'}Are you sure you want to Import now{/ts}{literal}?') ) {
         return false;
     }