libsemanage: fix memory leak when setting a custom store_path

A strdup was setting store_path without freeing the original
value in the semanage conf.

Signed-off-by: Yuli Khodorkovskiy <ykhodorkovskiy@tresys.com>

libsemanage/src/handle.c

@@ -319,6 +319,7 @@ void semanage_select_store(semanage_handle_t * sh, char *storename,
 
 	/* This just sets the storename to what the user requests, no 
 	   verification of existance will be done until connect */
+	free(sh->conf->store_path);
 	sh->conf->store_path = strdup(storename);
 	assert(sh->conf->store_path); /* no way to return failure */
 	sh->conf->store_type = storetype;