adding feature to indent

[Jean-Christophe Dubois]

Hi,

I'd like to propose a patch to ease the "linux coding style" with indent.

in the Linux source tree there is a script that shows the recommended Linux 
coding style using indent in scripts/Lindent. The content is as follow:

#!/bin/sh
indent -npro -kr -i8 -ts8 -sob -l80 -ss -ncs "$@"

So indent is almost there. However, anytime I post an "indented" file with 
labels on a linux mailing list, I am told that any (goto) label should start 
at column 1 always. I don't think there is any option in the actual indent to 
force (goto) label to start at column 1.

So this is what my attached patch is doing. It adds an option to specify the 
label offset and also add a "linux" profile that sums up the above line with 
the new "label offset" option.

Note that if the label offset option is not specified on the command line then 
there should be no change in behavior compared to the "old" indent.

I have not updated the documentation (man, ...) with the new option.

Thanks.

JC