libstdc++/4539: locale::combine should be const

[rodrigc@gcc.gnu.org]

Synopsis: locale::combine should be const

State-Changed-From-To: open->closed
State-Changed-By: rodrigc
State-Changed-When: Sat Oct 20 19:04:22 2001
State-Changed-Why:
    Patch applied.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=4539&database=gcc