core: fix memory leak when removing a hdata

ChangeLog

@@ -13,6 +13,7 @@ http://weechat.org/files/releasenotes/ReleaseNotes-devel.html[release notes]
 
 == Version 0.4.4 (under dev)
 
+* core: fix memory leak when removing a hdata
 * core: fix memory leak in evaluation of sub-conditions
 * core: fix memory leak in function gui_key_add_to_infolist (in case of
   insufficient memory)

src/core/wee-hdata.c

@@ -967,6 +967,8 @@ hdata_free (struct t_hdata *hdata)
         free (hdata->var_next);
     if (hdata->hash_list)
         hashtable_free (hdata->hash_list);
+    if (hdata->name)
+        free (hdata->name);
 
     free (hdata);
 }