Dear Keith,
many thanks for the report. These are clearly two bugs.
The bug of the bug-tracker was introduced by marking a proc deprecated and immediately move these to tcl/deprecated-procs.tcl. When OpenACS is configured with WithDeprecatedCode set to 0 (which is the case on openacs.org), then this file is not loaded... which broke the bug-tracker package (which is not on the list of fully maintained packages).
The bug tracker is already fixes, sorry for the inconveniences. I will look at acs_privilege_descendant_map the next days.
all the best
-g
PS: i've also updated the coding guidelines to hint the drawback of eager moving procs the long-deprecated procs.