Fix main.lua path

src/imapdomo.skel

 
 IMAPDOMO_CFGDIR="__IMAPDOMO_CONFIG_USER__"
 IMAPDOMO_USER_CACHE="__IMAPDOMO_USER_CACHE__"
+IMAPDOMO_HOME="__IMAPDOMO_SHARE__"
 
 
 usage() {
         echo -n "  -d $LogDir/debug.log"
         echo -n "  -v"
     fi
-    echo -n "  -c $CfgDir/main.lua"
+    echo -n "  -c $IMAPDOMO_HOME/main.lua"
 }
 
 main() {