Documentation: Fix indentation problem in git-commit(1)

Ever since the "See linkgit:git-config[1]..." paragraph was added to the description for --untracked-files (d6293d1), the paragraphs for the following options were indented at the same level as the "See linkgit:git-config[1]" paragraph. This problem showed up in the manpages, but not in the HTML documentation. While this does fix the alignment of the options following --untracked-files in the manpage, the "See linkgit..." portion of the description does not retain its previous indentation level in the manpages, or HTML documentation. Signed-off-by: Jacob Helwig <jacob.helwig@gmail.com> Acked-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>