Fix findMissingTranslations.sh for 2.0.x

buildroot/share/scripts/findMissingTranslations.sh

 # If no language codes are specified then all languages will be checked
 #
 
-[ -d "Marlin" ] && cd "Marlin"
+LANGHOME="Marlin/src/lcd/language"
+
+[ -d $LANGHOME ] && cd $LANGHOME
 
 FILES=$(ls language_*.h | grep -v -E "(_en|_test)\.h" | sed -E 's/language_([^\.]+)\.h/\1/')
 declare -A STRING_MAP
 echo
 
 for K in $( printf "%s\n" "${!STRING_MAP[@]}" | sort ); do
-  printf "%-35s :%s\n" "$K" "${STRING_MAP[$K]}"
+  case "$#" in
+    1 ) echo $K ;;
+    * ) printf "%-35s :%s\n" "$K" "${STRING_MAP[$K]}" ;;
+  esac
 done