IL:PRINT-LISP-INFORMATION is out of date. Consider adding git information.

[MattHeffron]

The function IL:PRINT-LISP-INFORMATION appears to be somewhat out of date. It should be brought up to be current, which implies changing the sources of the values that it displays. We should consider including the git repository information in this function's output, at least for a release of ours. (I.e., built from our scripts.) The requirements for the git information is the start of this.