These were not caught by the previous commit, as they did not match the
regular expression.

Signed-off-by: Johannes Schindelin <redacted>
---

diff --git a/submodule.c b/submodule.c

@@ -2043,7 +2043,7 @@ const char *get_superproject_working_tree(void)
                if (super_sub_len > cwd_len ||
                    strcmp(&cwd[cwd_len - super_sub_len], super_sub))
-                       die (_("BUG: returned path string doesn't match cwd?"));
+                       BUG("returned path string doesn't match cwd?");