Somewhere between 2.13.6 & 2.14.1 there's an output regression. I
haven't done a bisect to trace it down further yet.

Specifically, --rebase --recurse-submodules=yes seems to cause --quiet
to not be effective anymore.

Full commandline:
$ git pull --rebase --recurse-submodules --quiet

In 2.13.6, there is no output, it's quiet as expect.

In 2.14.1, you get:
HEAD is up to date.
Submodule path '_data/news': rebased into 'a50b763c338161b4621d23e9fa5cd6e11455d6ca'
HEAD is up to date.
Submodule path 'glep': rebased into 'e1f100ec3ba44ab1672d61cabf4690b355e46158'

Steps to reproduction:
1. git clone --recurse-submodules \
 https://anongit.gentoo.org/git/sites/www.git
2. cd www
3. git submodule foreach --quiet git pull --quiet origin master
4. git pull --rebase --recurse-submodules=yes --quiet

Repeat step 4 for repeated bug output.
If you drop the --rebase, then you need to re-run step 3 first.

-- 
Robin Hugh Johnson
Gentoo Linux: Dev, Infra Lead, Foundation Treasurer
E-Mail   : robbat2@gentoo.org
GnuPG FP : 11ACBA4F 4778E3F6 E4EDF38E B27B944E 34884E85
GnuPG FP : 7D0B3CEB E9B85B1F 825BCECF EE05E6F6 A48F6136