instead of `/bin/sh /etc/init.d/xprint get_xpserverlist`
- allows the initscript to set its own different shell under #!
- allows disabling of XPSERVERLIST by making the script non-executable
* Allow files to be installed by using dist_*_DATA instead of EXTRA_DIST.
Also, use dist_*_SCRIPTS to install scripts.
* Fix minor typos in man pages.