Merge pull request #3022 from orestisf1993/i3bar-leaks

Fix i3bar leaks

i3bar/include/outputs.h

@@ -33,6 +33,12 @@ void parse_outputs_json(char* json);
  */
 void init_outputs(void);
 
+/*
+ * free() all outputs data structures.
+ *
+ */
+void free_outputs(void);
+
 /*
  * Returns the output with the given name
  *