proposed enhancement: better logmsg formatting

[Greg Klanderman]

The attached patch creates an alternate logmsg format containing 
more useful information in an easier to read format, enabled by 
the LogMsgFancy=yes option (default is old format):

> Modified Files:
>       cat-5.lsp            1.66  1.67  +13 -10
>       cat-6.lsp            1.44  1.45  +10 -9 
>       cat-7.lsp            1.42  1.43  +10 -9 
>       stringing-logic.lsp  1.49  1.50  +2  -1 
> Log Message:
> ......

It also adds a new "t" format specifier for the logmsg script invocation,
expanding to the file's tag.

If you are interested in this feature, let me know if you require any
modifications for inclusion.  I find it useful to know how extensive
the changes being committed to our codebase are, and expect to write
an emacs hook to enable clicking on the message from my mail buffer
for the diff.

I grant permission to distribute this patch under the terms of the GNU
Public License.

Greg

patch.diff
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