Remove the use of toupper() from rtld_printf.c.  Use of the libc function relies on working TLS, which is particulary not true for LD_DEBUG uses.
Remove the use of toupper() from rtld_printf.c.  Use of the libc function
relies on working TLS, which is particulary not true for LD_DEBUG uses.

MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase