tcl: fix truncation of long integer returned by function hdata_long

ChangeLog.adoc

@@ -18,6 +18,7 @@ Bug fixes::
   * core: add missing mouse events "alt-ctrl-button2" and "alt-ctrl-button3"
   * script: always display list of scripts when searching scripts with `/script search` (issue #2077)
   * script: fix default mouse keys (issue #2076)
+  * tcl: fix truncation of long integer returned by function hdata_long
   * trigger: fix memory leak when adding a new trigger with `/trigger` command
 
 Build::

src/plugins/tcl/weechat-tcl-api.c

@@ -5617,7 +5617,8 @@ API_FUNC(hdata_long)
 {
     Tcl_Obj *objp;
     char *hdata, *pointer, *name;
-    int result, i;
+    long result;
+    int i;
 
     API_INIT_FUNC(1, "hdata_long", API_RETURN_LONG(0));
     if (objc < 4)