[minor] process_payroll_create salary fixed, fixes frappe/erpnext#8853  (#8881)

* [minor] process_payroll_create salary fixed

* [minor] indentation fix
diff --git a/erpnext/hr/doctype/process_payroll/process_payroll.py b/erpnext/hr/doctype/process_payroll/process_payroll.py
index 915985c..7ca94b8 100644
--- a/erpnext/hr/doctype/process_payroll/process_payroll.py
+++ b/erpnext/hr/doctype/process_payroll/process_payroll.py
@@ -112,14 +112,14 @@
 
 
 	def create_log(self, ss_list):
-		if not ss_list:
+		if not ss_list or len(ss_list) < 1: 
 			log = "<p>" + _("No employee for the above selected criteria OR salary slip already created") + "</p>"
 		else:
 			log = frappe.render_template("templates/includes/salary_slip_log.html",
 						dict(ss_list=ss_list,
 							keys=sorted(ss_list[0].keys()),
 							title=_('Created Salary Slips')))
-			return log
+		return log
 
 	def get_sal_slip_list(self, ss_status, as_dict=False):
 		"""