'required': $localize`Channel name is required.`,
'minlength': $localize`Channel name must be at least 1 character long.`,
'maxlength': $localize`Channel name cannot be more than 50 characters long.`,
- 'pattern': $localize`Channel name should be lowercase alphanumeric; dots and underscores are allowed.`
+ 'pattern': $localize`Channel name should be lowercase, and can contain only alphanumeric characters, dots and underscores.`
}
}