set_program_name behavior

[Sergey Poznyakoff]

Hello,

The behavior of set_program_name differs depending on whether argv[0]
refers to a libtool script (*/.libs/lt-*) or to a usual binary. In the first
case, the function strips off all directory components and the `lt-'
prefix, and assigns the result to program_name. In the second case,
however, it does nothing and assings unchanged argv[0] to
program_name. Is this intentional? It would be logical if it removed
directory components in both cases.

Regards,
Sergey