texi2pod.pl: Merge changes from binutils' texi2pod.pl.

texi2pod.pl: Merge changes from binutils' texi2pod.pl.

2001-12-12  Matthias Klose  <doko@debian.org>

	* texi2pod.pl: Merge changes from binutils' texi2pod.pl. Allows
	generation of more than one man page from one source.
	Add '-' to set of valid chars for an identifier.
	Let -D option accept flags of the form <flag>=<value>.
	Use \s+ for whitespace detection in '@c man' lines.
	Handle @set and @clear independent of $output.
	Substitute all @value{}'s in a line.

From-SVN: r48015