Update 5.x-rc.md

doc/5.x-rc.md

@@ -54,10 +54,8 @@ git scan foreach -c 'pwd; git branch | grep \* ; echo'
 git scan up
  
 ## Fixme: for now you need to manually add the extra drupal branches
-cd drupal
-git checkout 6.x-master && git pull origin 6.x-master
-git checkout 7.x-master && git pull origin 7.x-master
-cd ..
+( cd drupal && git checkout 6.x-master && git pull origin 6.x-master )
+( cd drupal && git checkout 7.x-master && git pull origin 7.x-master )
  
 ## Make branches (preview)
 git scan branch 5.X master -p -n -T