don't run setup_tools / check_directories when issuing --help

ChangeLog

@@ -5,6 +5,7 @@ v6.2.0:
 - add support for Tokyo Mirage Sessions #FE US/EUR decensoring
 - use ${WIT} instead of wit when checking image region for
   MKWiimm and Kirbys Adventure Wii
+- minor internal changes
 
 v6.1.0:
 - update szs to version 1.50a

patchimage.sh

@@ -27,12 +27,12 @@ if [[ -e $HOME/.patchimage.rc ]]; then
 fi
 
 source ${PATCHIMAGE_SCRIPT_DIR}/common.sh
+optparse "${@}"
+
 check_directories
 
 setup_tools
 
-optparse "${@}"
-
 if [[ ! ${GAME} ]]; then
 	ask_game
 fi