Root-tail 1.2

Root-tail is a program that allows printing of text directly to the X11 root window wherever you choose, much like running rxvt with a pixmap background but without the hassle and with more features.
Install:
xmkmf -a
make
make install
make install.man
Enhancements:
- replaced default font by "*" to "ensure" some font is found.
- accept hexadecimal window ids, as does everybody else(?).
- made it compile with ansi-89-based compilers again.
- add hack to support nautilus (not very stable, nautilus should either use extended window manager hints or __SWM_VROOT, as everybody else does).
- do not initialize the window twice (fixes problems with multiple visuals).
- new option: -minspace.
- fixed seg fault if geometry is too short to fit a single line
- fix bug which became apparent if -no-filename or null