Simplify AM_INIT_AUTOMAKE call.
Remove sulogin, this is provided by util-linux these days.
Remove /bin programs that are provided by util-linux these days.
Remove man pages of removed commands.
Check return value of fscanf() in init.c

This is mostly pointless, but complete per the fscanf() API.  And
everyone likes clean compiler output.
Check return value of setuid() in shutdown.c
Move initscript.sample to doc/
Supplement the 'make install' step in src/

Create symlinks and /dev/initctl if it doesn't exist.
Update .gitignore