add escbtn to edit-placed-item

rsrc/dialogs/edit-placed-item.xml

@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8' standalone='no'?>
 <!-- NOTE: This file should be updated to use relative positioning the next time it changes. -->
 <?xml-stylesheet href="dialog.xsl" type="text/xsl"?>
-<dialog defbtn='okay'>
+<dialog defbtn='okay' escbtn='cancel'>
 	<!-- OK button -->
 	<button name='okay' type='regular' top='195' left='316'>OK</button>
 	<pict name='pic' type='dlog' num='16' top='8' left='12'/>