Replace "all" with true

Author: code-warrior

tutorials/sublime-text/User/Preferences.sublime-settings

@@ -69,7 +69,7 @@
   "tab_completion": false,
   "tab_size": 2,
   "translate_tabs_to_spaces": true,
-  "trim_trailing_white_space_on_save": "all",
+  "trim_trailing_white_space_on_save": true,
   "update_check": false,
   "word_separators": "./\\()\"'_-–—“”‘”:,.;<>~!@#$%^&*|+=[]{}`~?",
   "word_wrap": "true",