Fix bug finding pip install method
Fix bug finding pip install method

An fatal error results due to the install script search '.find' not existing
on the dict result of the install script check task. Instead the .find should
be searching the stdout key of the install script check task results dict.

Ie. .find() is a string search, not a dict search.

The following fatal error results when using .find() on the dict:

The conditional check 'pip_install_script.find('get-pip.py') != -1' failed.
The error was: error while evaluating conditional (pip_install_script.find('get-pip.py') != -1): 'dict object' has no attribute 'find'

Change-Id: I4b929d58057b3d249007fe7c563439ab65faf4ce

openstack/openstack-ansible-pip_install,openstack/openstack-ansible-pip_install