Merge upstream changes from Marlin 2.1.1

buildroot/share/git/mfqp

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# mfqp [1|2|3]
+# mfqp [1|2]
 #
 #  - git add .
 #  - git commit --amend
@@ -24,7 +24,7 @@ while [ $IND -lt ${#INFO[@]} ]; do
   let IND+=1
 done
 
-[[ $USAGE == 1 ]] && { echo "usage: `basename $0` [1|2|3]" 1>&2 ; exit 1 ; }
+[[ $USAGE == 1 ]] && { echo "usage: `basename $0` [1|2]" 1>&2 ; exit 1 ; }
 
 [[ $FORCE != 1 && $CURR == $TARG && $REPO != "MarlinDocumentation" ]] && { echo "Don't alter the PR Target branch."; exit 1 ; }