git-svnimport: Parse log message for Signed-off-by: lines
git-svnimport: Parse log message for Signed-off-by: lines

This add '-S' option. When specified svn-import will try to parse
commit message for 'Signed-off-by: ...' line, and if found will use
the name and email address extracted at first occurrence as this commit
author name and author email address. Committer name and email are
extracted in usual way.

Signed-off-by: Sasha Khapyorsky <cdde72744663f6fcaf6f7de57afdb98d3911c7ce@voltaire.com>
Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git