deviceinfo: Don't use deprecated strings.Title (MR 20)

This is a janky way to capitalize the first letter of the word.
strings.Title was kind of overkill anyways I guess, since the reason for
its deprecation wasn't even anything we'd hit in our usage of it (unable
to detect some unicode punctuation for word boundaries... which a
deviceinfo field wouldn't have anyways...)

fixes #12

pkgs/deviceinfo/deviceinfo.go

@@ -120,7 +120,10 @@ func nameToField(name string) string {
 		if p == "deviceinfo" {
 			continue
 		}
-		field = field + strings.Title(p)
+		if len(p) < 1 {
+			continue
+		}
+		field = field + strings.ToUpper(p[:1]) + p[1:]
 	}
 
 	return field