Merge tag '2.0.6.1' of https://github.com/MarlinFirmware/Marlin into master

buildroot/share/git/firstpush

@@ -14,11 +14,9 @@ FORK=${INFO[1]}
 REPO=${INFO[2]}
 BRANCH=${INFO[5]}
 
-git push --set-upstream origin $BRANCH
+git push --set-upstream origin HEAD:$BRANCH
 
-which xdg-open >/dev/null && TOOL=xdg-open
-which gnome-open >/dev/null && TOOL=gnome-open
-which open >/dev/null && TOOL=open
+OPEN=$(echo $(which gnome-open xdg-open open) | awk '{ print $1 }')
 URL="https://github.com/$FORK/$REPO/commits/$BRANCH"
 
 if [ -z "$OPEN" ]; then