👔 Fix and comment use_example_configs

buildroot/bin/use_example_configs

@@ -1,10 +1,20 @@
 #!/usr/bin/env bash
+#
+# use_example_configs [repo:]configpath
+#
+# Examples:
+#   use_example_configs Creality/CR-10/CrealityV1
+#   use_example_configs release-2.0.9.4:Creality/CR-10/CrealityV1
+#
+# If a configpath has spaces (or quotes) escape them or enquote the path
+#
 
-BRANCH=$(git branch 2>/dev/null | grep ^* | sed 's/\* //g')
+CURR=$(git branch 2>/dev/null | grep ^* | sed 's/\* //g')
+[[ $CURR == "bugfix-2.0.x" ]] && BRANCH=bugfix-2.0.x || BRANCH=bugfix-2.1.x
 
 IFS=: read -r PART1 PART2 <<< "$@"
-[ -n "${PART2}" ] && { REPO="$PART1" ; RDIR="${PART2// /%20}" ; } \
-                  || { REPO=$BRANCH   ; RDIR="${PART1// /%20}" ; }
+[[ -n $PART2 ]] && { REPO="$PART1" ; RDIR="${PART2// /%20}" ; } \
+                || { REPO=$BRANCH  ; RDIR="${PART1// /%20}" ; }
 EXAMPLES="https://raw.githubusercontent.com/MarlinFirmware/Configurations/$REPO/config/examples"
 
 which curl >/dev/null && TOOL='curl -L -s -S -f -o wgot'
@@ -14,6 +24,8 @@ restore_configs
 
 cd Marlin
 
+echo "Fetching $RDIR configurations from $REPO..."
+
 $TOOL "$EXAMPLES/$RDIR/Configuration.h"     >/dev/null 2>&1 && mv wgot Configuration.h
 $TOOL "$EXAMPLES/$RDIR/Configuration_adv.h" >/dev/null 2>&1 && mv wgot Configuration_adv.h
 $TOOL "$EXAMPLES/$RDIR/_Bootscreen.h"       >/dev/null 2>&1 && mv wgot _Bootscreen.h