regress: nix 'set -A' kshism from tests As reported by naddy, this is a non-portable Korn shell construct. Instead, use the one argument array then make faux space-delimited string "arrays" for the other ids; they can still be indexed with pop_idx. improved by + ok naddy@

tog: add support for commit keywords Allow keywords as arguments to options and operands for the blame, diff, log, and tree commands. Also, return 1 when exiting tog with error rather than 0 so regress can discern success from failure. ok stsp@

add test coverage for tog displaying a symlink

tog: teach test harness to count and basic tree tests Add count instruction to the test harness to simulate count modifier compound keys (e.g., 11j), and add basic tests for the tree view. ok stsp@