rename(2P) and libPW.a on ISC V3.2 R2.0.2

[Alain PETIT]

	Hi! I'm trying to use rename(2P) but 'ld' report an undefined
	symbol "Error" in /lib/libPW.a.  I 'ar t /lib/*.a
	/usr/lib/*.a', 'nm /lib/*.a /lib/*.o /usr/lib/*.a' and found
	no entry named 'Error', I check in the new man pages of R2.2
	and found no (char *) to a old bug in R2.0.2.  Same in
	release notes.

	I can't switch to R2.2 now because of my wild Disk System
	but if you have some old (working) patchs to propose. Thanks
	to you!

Nota: I already try to make a alternate Error() function but I don't
      know is true nature, and I got more core file than working
      softwares.
	
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