Validate nodes order-by against strings
Validate nodes order-by against strings

ajroetker/puppetdb,highb/puppetdb,puppetlabs/puppetdb,mullr/puppetdb,senior/puppetdb,rbrw/puppetdb,wkalt/puppetdb,mullr/puppetdb,ajroetker/puppetdb,jantman/puppetdb,jantman/puppetdb,shrug/puppetdb,kbarber/puppetdb,rbrw/puppetdb,senior/puppetdb,johnduarte/puppetdb,puppetlabs/puppetdb,highb/puppetdb,ajroetker/puppetdb,senior/puppetdb,wkalt/puppetdb,shrug/puppetdb,kbrezina/puppetdb,puppetlabs/puppetdb,cprice404/puppetdb,kbrezina/puppetdb,johnduarte/puppetdb,ajroetker/puppetdb,mullr/puppetdb,cprice404/puppetdb,wkalt/puppetdb,waynr/puppetdb,kbarber/puppetdb,rbrw/puppetdb,cprice404/puppetdb,mullr/puppetdb,johnduarte/puppetdb,grimradical/puppetdb,waynr/puppetdb,rbrw/puppetdb,puppetlabs/puppetdb,grimradical/puppetdb,grimradical/puppetdb,senior/puppetdb,kbarber/puppetdb,rbrw/puppetdb,puppetlabs/puppetdb,kbrezina/puppetdb,highb/puppetdb,jantman/puppetdb,shrug/puppetdb,waynr/puppetdb,waynr/puppetdb,kbrezina/puppetdb,grimradical/puppetdb,kbarber/puppetdb,shrug/puppetdb,mullr/puppetdb,johnduarte/puppetdb,wkalt/puppetdb,highb/puppetdb