Also use LC_C_LOCALE on CloudABI.

Before I discovered that NetBSD provides a permanent handle to the C
locale called LC_C_LOCALE, I also added support for this to CloudABI
under the name LC_POSIX_LOCALE. I've renamed it to LC_C_LOCALE to
improve compatibility.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@231780 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed