check_coding_style: Format as email to feed checkpatch.pl

Signed-off-by: Fam Zheng <famz@redhat.com>
profile: Allow set profile again when branch config profile name is not valid

Signed-off-by: Fam Zheng <famz@redhat.com>
email: Improve email sending and displaying

Signed-off-by: Fam Zheng <famz@redhat.com>
gitignore: Ignore vim swp files

Signed-off-by: Fam Zheng <famz@redhat.com>