[Fix] Footer for report print

frappe/boot.py

@@ -84,8 +84,9 @@ def get_bootinfo():
 
 def get_letter_heads():
 	letter_heads = {}
-	for letter_head in frappe.get_all("Letter Head", fields = ["name", "content"]):
-		letter_heads.setdefault(letter_head.name, {'header': letter_head.content, 'footer': letter_head.footer})
+	for letter_head in frappe.get_all("Letter Head", fields = ["name", "content", "footer"]):
+		letter_heads.setdefault(letter_head.name,
+			{'header': letter_head.content, 'footer': letter_head.footer})
 
 	return letter_heads