add timeout units to cmds help example

pkg/kubectl/cmd/replace.go

@@ -84,7 +84,7 @@ func NewCmdReplace(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	cmd.Flags().Bool("force", false, "Delete and re-create the specified resource")
 	cmd.Flags().Bool("cascade", false, "Only relevant during a force replace. If true, cascade the deletion of the resources managed by this resource (e.g. Pods created by a ReplicationController).")
 	cmd.Flags().Int("grace-period", -1, "Only relevant during a force replace. Period of time in seconds given to the old resource to terminate gracefully. Ignored if negative.")
-	cmd.Flags().Duration("timeout", 0, "Only relevant during a force replace. The length of time to wait before giving up on a delete of the old resource, zero means determine a timeout from the size of the object")
+	cmd.Flags().Duration("timeout", 0, "Only relevant during a force replace. The length of time to wait before giving up on a delete of the old resource, zero means determine a timeout from the size of the object. Any other values should contain a corresponding time unit (e.g. 1s, 2m, 3h).")
 	cmdutil.AddValidateFlags(cmd)
 	cmdutil.AddRecursiveFlag(cmd, &options.Recursive)
 	cmdutil.AddOutputFlagsForMutation(cmd)

pkg/kubectl/cmd/scale.go

@@ -84,7 +84,7 @@ func NewCmdScale(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	cmd.Flags().Int("current-replicas", -1, "Precondition for current size. Requires that the current size of the resource match this value in order to scale.")
 	cmd.Flags().Int("replicas", -1, "The new desired number of replicas. Required.")
 	cmd.MarkFlagRequired("replicas")
-	cmd.Flags().Duration("timeout", 0, "The length of time to wait before giving up on a scale operation, zero means don't wait.")
+	cmd.Flags().Duration("timeout", 0, "The length of time to wait before giving up on a scale operation, zero means don't wait. Any other values should contain a corresponding time unit (e.g. 1s, 2m, 3h).")
 	cmdutil.AddOutputFlagsForMutation(cmd)
 	cmdutil.AddRecordFlag(cmd)
 	cmdutil.AddInclude3rdPartyFlags(cmd)