tls: Arrange cipher suites in map in preference order for convenience

Maps are NOT ordered at runtime but I still want the cipher suites
listed in order of preference in the source file for convenience.

caddytls/config.go

@@ -432,18 +432,18 @@ var supportedProtocols = map[string]uint16{
 //
 // This map, like any map, is NOT ORDERED. Do not range over this map.
 var supportedCiphersMap = map[string]uint16{
-	"ECDHE-RSA-AES256-GCM-SHA384":        tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
 	"ECDHE-ECDSA-AES256-GCM-SHA384":      tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
-	"ECDHE-RSA-AES128-GCM-SHA256":        tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+	"ECDHE-RSA-AES256-GCM-SHA384":        tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
 	"ECDHE-ECDSA-AES128-GCM-SHA256":      tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-	"ECDHE-RSA-WITH-CHACHA20-POLY1305":   tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
+	"ECDHE-RSA-AES128-GCM-SHA256":        tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
 	"ECDHE-ECDSA-WITH-CHACHA20-POLY1305": tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
-	"ECDHE-RSA-AES128-CBC-SHA":           tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
+	"ECDHE-RSA-WITH-CHACHA20-POLY1305":   tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
 	"ECDHE-RSA-AES256-CBC-SHA":           tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+	"ECDHE-RSA-AES128-CBC-SHA":           tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
 	"ECDHE-ECDSA-AES256-CBC-SHA":         tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
 	"ECDHE-ECDSA-AES128-CBC-SHA":         tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
-	"RSA-AES128-CBC-SHA":                 tls.TLS_RSA_WITH_AES_128_CBC_SHA,
 	"RSA-AES256-CBC-SHA":                 tls.TLS_RSA_WITH_AES_256_CBC_SHA,
+	"RSA-AES128-CBC-SHA":                 tls.TLS_RSA_WITH_AES_128_CBC_SHA,
 	"ECDHE-RSA-3DES-EDE-CBC-SHA":         tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
 	"RSA-3DES-EDE-CBC-SHA":               tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
 }