[Minor]Print fixes

frappe/__init__.py

@@ -1133,7 +1133,7 @@ def format_value(value, df, doc=None, currency=None):
 	import frappe.utils.formatters
 	return frappe.utils.formatters.format_value(value, df, doc, currency=currency)
 
-def get_print(doctype, name, print_format=None, style=None, html=None, as_pdf=False, doc=None):
+def get_print(doctype=None, name=None, print_format=None, style=None, html=None, as_pdf=False, doc=None):
 	"""Get Print Format for given document.
 
 	:param doctype: DocType of document.

frappe/www/print.py

@@ -19,10 +19,10 @@ standard_format = "templates/print_formats/standard.html"
 
 def get_context(context):
 	"""Build context for print"""
-	if not frappe.form_dict.doctype or not frappe.form_dict.name:
+	if not ((frappe.form_dict.doctype and frappe.form_dict.name) or frappe.form_dict.doc):
 		return {
 			"body": """<h1>Error</h1>
-				<p>Parameters doctype, name and format required</p>
+				<p>Parameters doctype and name required</p>
 				<pre>%s</pre>""" % repr(frappe.form_dict)
 		}