start/delete: error strings should not end with newline (revive)

    delete.go:84:22: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                return fmt.Errorf("cannot delete container %s that is not stopped: %s\n", id, s)
                                  ^
    start.go:51:22: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                return fmt.Errorf("cannot start a container in the %s state\n", status)
                                  ^

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Author: thaJeztah

delete.go

@@ -81,7 +81,7 @@ status of "ubuntu01" as "stopped" the following will delete resources held for
 			if force {
 				return killContainer(container)
 			}
-			return fmt.Errorf("cannot delete container %s that is not stopped: %s\n", id, s)
+			return fmt.Errorf("cannot delete container %s that is not stopped: %s", id, s)
 		}
 
 		return nil

start.go

@@ -48,7 +48,7 @@ your host.`,
 		case libcontainer.Running:
 			return errors.New("cannot start an already running container")
 		default:
-			return fmt.Errorf("cannot start a container in the %s state\n", status)
+			return fmt.Errorf("cannot start a container in the %s state", status)
 		}
 	},
 }