Comment changes only

1. Remove comment about "extend the use of url.Parse" because that was in fact done in commit 53c3b91 2. Add godoc style comment explaining `SetCustomTLSConfig`

Author: atomicules

driver/driver.go

@@ -264,9 +264,16 @@ func init() {
 sql.Register("mysql", driver{})
 }
 
+
+// SetCustomTLSConfig sets a custom TLSConfig for the address (host:port) of the supplied DSN.
+// It requires a full import of the driver (not by side-effects only).
+// Example of supplying a custom CA, no client cert, no key, validating the
+// certificate, and supplying a serverName for the validation:
+//
+// driver.SetCustomTLSConfig(CaPem, make([]byte, 0), make([]byte, 0), false, "my.domain.name")
+//
 func SetCustomTLSConfig(dsn string, caPem []byte, certPem []byte, keyPem []byte, insecureSkipVerify bool, serverName string) error {
 // Extract addr from dsn
-// We can hopefully extend the use of url.Parse if we switch the DSN style
 parsed, err := url.Parse(dsn)
 if err != nil {
 return errors.Errorf("Unable to parse DSN. Need to extract address to use as key for storing custom TLS config")