
In Icb590e805d0d29130bff99335590d1d0f646e4e4 we added a task to ensure we don't use our own mirrors for wheel builing. This updates pip.conf but isn't execurted as root. As pip.conf (and /etc) are owned by root we need to switch to that user for this task. Without this we see the following failures: http://logs.openstack.org/96/594496/2/check/build-wheel-mirror-centos-7/76fba4f/job-output.txt.gz#_2018-10-11_02_07_18_214033 Change-Id: Iee83a463aa9f3d4d45727e3f6c641ce8436b0b83