[REF] reformat list comprehension

account_financial_report_webkit/report/common_balance_reports.py

@@ -91,10 +91,9 @@ class CommonBalanceReportHeaderWebkit(CommonReportHeaderWebkit):
                 # sum for top level views accounts
                 child_ids = account_obj._get_children_and_consol(self.cursor, self.uid, account['id'], ctx)
                 if child_ids:
-                    child_init_balances = [ \
-                            init_bal['init_balance'] \
-                            for acnt_id, init_bal \
-                            in init_balance.iteritems() \
+                    child_init_balances = [
+                            init_bal['init_balance']
+                            for acnt_id, init_bal in init_balance.iteritems()
                             if acnt_id in child_ids]
                     top_init_balance = reduce(add, child_init_balances)
                     account['init_balance'] = top_init_balance