Typo in Device model

[grncbg]

Deployment Type

Self-hosted

NetBox Version

v3.7.2

Python Version

3.8

Steps to Reproduce

error message is defined as "A U0 device type ...", but I think the correct definition is "A 0U device type ...".

netbox/netbox/dcim/models/devices.py

Lines 873 to 880 in 011bc5b

	# Prevent 0U devices from being assigned to a specific position
	if hasattr(self, 'device_type'):
	if self.position and self.device_type.u_height == 0:
	raise ValidationError({
	'position': _(
	"A U0 device type ({device_type}) cannot be assigned to a rack position."
	).format(device_type=self.device_type)
	})

Expected Behavior

A 0U device type ({device_type}) cannot be assigned to a rack position.

Observed Behavior

A U0 device type ({device_type}) cannot be assigned to a rack position.