update todo, in re make

Author: jgarzik

TODO.md

@@ -18,7 +18,11 @@
 
 ## Other items
 
-The `find` test `find_mtime_test` is hardcoded to use a specific
+**find**: The `find` test `find_mtime_test` is hardcoded to use a specific
 date offset.  This was increased to 7000 days to temporarily avoid
 test failure.  The test should be improved.
 
+**make**: posixutils' standard is to _not_ use the src/ directory that
+is standard for Rust binaries.  Update `make` to remove the src/
+directory by moving files within the repo.
+