These modifications were required by hand after running the script.
In some cases, the file names did not match patterns. In others,
the format of the file did not match any common patterns.
<corsepiu@faw.uni-ulm.de> that makes the following changes:
* Don't use a temporary file for ch19.texi anymore
* pass all files to be handled by summarize as commandline arguments
* Remove a dangling empty first line in posix1003_1.texi (texi2html
(!) expects \input texinfo on the first line)