Update checklist.

.github/PULL_REQUEST_TEMPLATE.md

@@ -7,8 +7,8 @@ Please make sure that the following items are taken care of if needed:
     `lobster.util`.  This will ensure that Lobster does not try to load old
     projects with an incompatible version.
 - [ ] Did the required _Work Queue_ version change?
-  - Please update the *two* version numbers in `doc/install.rst`.  If a new
-    `cctools` tarball is available, please update that, too.
+  - Please update the *three* version numbers in `doc/install.rst`.  Adjust
+    the tarball name in the `install_dependecies.sh` script, too.
 - [ ] Are all additional dependencies in `setup.py`?
 - [ ] [Mark any issues as closed either in commits or in this pull
   request.](https://help.github.com/articles/closing-issues-via-commit-messages/)