refactor: rename wait-on-error to hetzner-wait-on-error

fixes #100

Author: mookie-

README.md

@@ -113,7 +113,7 @@ $ docker-machine create \
 - `--hetzner-ssh-user`: Change the default SSH-User
 - `--hetzner-ssh-port`: Change the default SSH-Port
 - `--hetzner-primary-ipv4/6`: Sets an existing primary IP (v4 or v6 respectively) for the server, as documented in [Networking](#networking)
-- `--wait-on-error`: Amount of seconds to wait on server creation failure (0/no wait by default)
+- `--hetzner-wait-on-error`: Amount of seconds to wait on server creation failure (0/no wait by default)
 
 #### Existing SSH keys
 
@@ -159,7 +159,7 @@ was used during creation.
 | `--hetzner-ssh-port`            | `HETZNER_SSH_PORT`            | 22                         |
 | `--hetzner-primary-ipv4`        | `HETZNER_PRIMARY_IPV4`        |                            |
 | `--hetzner-primary-ipv6`        | `HETZNER_PRIMARY_IPV6`        |                            |
-| `--wait-on-error`               | `WAIT_ON_ERROR`               | 0                          |
+| `--hetzner-wait-on-error`       | `HETZNER_WAIT_ON_ERROR`       | 0                          |
 
 #### Networking
 

driver.go

@@ -102,7 +102,7 @@ const (
 	defaultSSHPort = 22
 	defaultSSHUser = "root"
 
-	flagWaitOnError    = "wait-on-error"
+	flagWaitOnError    = "hetzner-wait-on-error"
 	defaultWaitOnError = 0
 
 	legacyFlagUserDataFromFile = "hetzner-user-data-from-file"
@@ -275,7 +275,7 @@ func (d *Driver) GetCreateFlags() []mcnflag.Flag {
 			Value:  defaultSSHPort,
 		},
 		mcnflag.IntFlag{
-			EnvVar: "WAIT_ON_ERROR",
+			EnvVar: "HETZNER_WAIT_ON_ERROR",
 			Name:   flagWaitOnError,
 			Usage:  "Wait if an error happens while creating the server",
 			Value:  defaultWaitOnError,