git-svn.txt: move option descriptions The options '---use-log-author' and '--add-author-from' are applicable to other subcommands except 'fetch' -- therefore move them from the 'fetch' section to the more general 'options' section. Signed-off-by: Valentin Haenel <valentin.haenel@gmx.de> Acked-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>