Merge pull request #22821 from zunayed/patch-1

fix duplicate command in uninstall instructions
(cherry picked from commit 1691fe6d23b083c67aea120f05c4797220388d59)

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

docs/installation/linux/fedora.md

@@ -186,7 +186,7 @@ You can uninstall the Docker software with `dnf`.
 
 1. List the package you have installed.
 
-		$ dnf list installed | grep docker dnf list installed | grep docker
+		$ dnf list installed | grep docker
 		docker-engine.x86_64     1.7.1-0.1.fc21 @/docker-engine-1.7.1-0.1.fc21.el7.x86_64
 
 2. Remove the package.