rc.subr: disabling globbing while processing devfs rules
rc.subr: disabling globbing while processing devfs rules

The rules themselves typically have shell-like patterns and it is
incorrect when they get replaced with matching filesystem entries.

Shell magic by:	jilles
MFC after:	2 weeks

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