error_t is defined in glibc & not necessarily available on operating systems which use a different implementation
This allows Coova to build on FreeBSD with GCC

	modified:   src/redir.c
dos2unix (CR/LF > LF)
	modified:   bstring/bstraux.c
	modified:   bstring/bstraux.h
	modified:   bstring/bstrlib.c
	modified:   bstring/bstrlib.h
	modified:   bstring/bstrlib.txt
	modified:   bstring/license.txt
	modified:   bstring/porting.txt
	modified:   bstring/security.txt
Merge pull request #1 from sevan/master

Fix a build issue with FreeBSD