pam_file/Makefile, branch master

pam_file/Makefile, branch master PAM name validation using file https://cgit.deathstation9000.org.uk/cgit.cgi/pam_file/atom?h=master 2018-08-16T12:27:05Z Initial working version. 2018-08-16T12:27:05Z Ian C ianc@noddybox.co.uk 2018-08-16T12:27:05Z urn:sha1:5b5378e907928e85ab783088038c993a275bb1bf