Added check for rpath in MacOS dotapp script

macos/delete_rpath.sh

@@ -13,4 +13,6 @@ get_second_arg() {
 # Get current rpath
 WANTED_RPATH=$(get_second_arg $(otool -l $EXEC | grep $RPATH_NAME | grep path))
 
-install_name_tool -delete_rpath $WANTED_RPATH $EXEC
+if [ ! -z "$WANTED_RPATH" ]; then
+    install_name_tool -delete_rpath $WANTED_RPATH $EXEC
+fi