Update device.go

More explicit, descriptive, and consistent field names for `langb`

device.go

@@ -27,7 +27,7 @@ type Device struct {
 	GeoFetch     int             `json:"geofetch,omitempty"`       // Indicates if the geolocation API will be available to JavaScript code running in the banner,
 	FlashVersion string          `json:"flashver,omitempty"`       // Flash version
 	Language     string          `json:"language,omitempty"`       // Browser language using ISO-639-1-alpha-2. Only one of language or langb should be present.
-	LangB        string          `json:"langb,omitempty"`          // Browser language using IETF BCP 47. Only one of language or langb should be present.
+	LanguageB    string          `json:"langb,omitempty"`          // Browser language using IETF BCP 47. Only one of language or langb should be present.
 	Carrier      string          `json:"carrier,omitempty"`        // Carrier or ISP derived from the IP address
 	MCCMNC       string          `json:"mccmnc,omitempty"`         // Mobile carrier as the concatenated MCC-MNC code (e.g., "310-005" identifies Verizon Wireless CDMA in the USA).
 	ConnType     ConnType        `json:"connectiontype,omitempty"` // Network connection type.