pip package provider is broken on EL (where osfamily is RedHat)

https://groups.google.com/forum/#!topic/puppet-users/2wOLKZ2SokQ

To duplicate, on an EL system (I used EL7) install `python-pip` then run `puppet apply -d pip.pp` with the code below in pip.pp

package { 's3cmd':

  ensure   => present,

  provider => pip,

Error

Error: Could not set 'present' on ensure: Could not locate the pip command.

Fix:
The code is looking for `python-pip` as the binary when osfamily is 'RedHat' which is incorrect. Confirmed by symlinking /usr/bin/python-pip -> /usr/bin/pip and then it worked.