8d136297c4
SELinux user for user's login. * NEWS, src/usermod.c, man/usermod.8.xml: Likewise. * libmisc/system.c, libmisc/Makefile.am, lib/prototypes.h: Added safe_system(). Used to run semanage. * lib/prototypes.h, libmisc/copydir.c: Make a selinux_file_context() an extern function. * libmisc/copydir.c: Reset SELinux to create files with default contexts at the end of copy_tree(). * NEWS, src/userdel.c: Delete the SELinux user mapping for user's login.