Fix the phpdoc for SimpleSAML\Utils\Random::generateID() and add a constant with the length of generated IDs.
Fix the phpdoc for SimpleSAML\Utils\Random::generateID() and add a constant with the length of generated IDs.

simplesamlphp/simplesamlphp,dnmvisser/simplesamlphp,ghalse/simplesamlphp,jschlyter/simplesamlphp,madmatt/simplesamlphp,BrettMerrick/simplesamlphp,gtkrug/simplesamlphp,dialogik/simplesamlphp,simplesamlphp/simplesamlphp,grnet/simplesamlphp,BrettMerrick/simplesamlphp,cwaldbieser/simplesamlphp,dzuelke/simplesamlphp,shoaibali/simplesamlphp,girgen/simplesamlphp,madmatt/simplesamlphp,dzuelke/simplesamlphp,girgen/simplesamlphp,dnmvisser/simplesamlphp,girgen/simplesamlphp,maytechnet/simplesamlphp,ghalse/simplesamlphp,dzuelke/simplesamlphp,shoaibali/simplesamlphp,grnet/simplesamlphp,ghalse/simplesamlphp,sitya/simplesamlphp,dialogik/simplesamlphp,maytechnet/simplesamlphp,grnet/simplesamlphp,jschlyter/simplesamlphp,cwaldbieser/simplesamlphp,dzuelke/simplesamlphp,girgen/simplesamlphp,madmatt/simplesamlphp,shoaibali/simplesamlphp,sitya/simplesamlphp,sitya/simplesamlphp,madmatt/simplesamlphp,cwaldbieser/simplesamlphp,jschlyter/simplesamlphp,girgen/simplesamlphp,gtkrug/simplesamlphp,dnmvisser/simplesamlphp,dialogik/simplesamlphp,gtkrug/simplesamlphp,simplesamlphp/simplesamlphp,maytechnet/simplesamlphp,BrettMerrick/simplesamlphp,simplesamlphp/simplesamlphp,BrettMerrick/simplesamlphp,shoaibali/simplesamlphp,maytechnet/simplesamlphp,gtkrug/simplesamlphp,sitya/simplesamlphp,jschlyter/simplesamlphp,cwaldbieser/simplesamlphp,dialogik/simplesamlphp,jschlyter/simplesamlphp,dialogik/simplesamlphp,grnet/simplesamlphp,ghalse/simplesamlphp,dnmvisser/simplesamlphp