systemctl-*: reorder options (#18183)

pages/linux/systemctl-cancel.md

@@ -17,4 +17,4 @@
 
 - Cancel a job in the user service manager:
 
-`systemctl --user cancel {{job_id}}`
+`systemctl cancel --user {{job_id}}`

pages/linux/systemctl-disable.md

@@ -9,7 +9,7 @@
 
 - Stop a service from running on boot and stop its current execution:
 
-`systemctl disable {{unit}} --now`
+`systemctl disable --now {{unit}}`
 
 - Stop a user service from running on login:
 

pages/linux/systemctl-enable.md

@@ -9,7 +9,7 @@
 
 - Enable a service to run on boot and start it now:
 
-`systemctl enable {{unit}} --now`
+`systemctl enable --now {{unit}}`
 
 - Enable a user unit to run on login:
 

pages/linux/systemctl-mask.md

@@ -9,7 +9,7 @@
 
 - Ensure that the service is shut down while masking:
 
-`systemctl mask {{service_name}} --now`
+`systemctl mask --now {{service_name}}`
 
 - Mask a user service:
 

pages/linux/systemctl-unmask.md

@@ -10,7 +10,7 @@
 
 - Unmask and start a service immediately:
 
-`systemctl unmask {{service_name}} --now`
+`systemctl unmask --now {{service_name}}`
 
 - Unmask a user service: