POS print format fix (#8973)

diff --git a/erpnext/accounts/page/pos/pos.js b/erpnext/accounts/page/pos/pos.js
index da4a3b7..026cdc0 100644
--- a/erpnext/accounts/page/pos/pos.js
+++ b/erpnext/accounts/page/pos/pos.js
@@ -355,8 +355,13 @@
 
 		this.print_template_data = frappe.render_template("print_template", {
 			content: this.print_template,
-			title: "POS", base_url: frappe.urllib.get_base_url(), print_css: frappe.boot.print_css,
-			print_settings: this.print_settings, header: this.letter_head.header, footer: this.letter_head.footer
+			title: "POS",
+			base_url: frappe.urllib.get_base_url(),
+			print_css: frappe.boot.print_css,
+			print_settings: this.print_settings,
+			header: this.letter_head.header,
+			footer: this.letter_head.footer,
+			landscape: false
 		})
 	},