#2080 some man pages have .BS without .BE

[Anonymous]

The following files have a .BS call without a
following .BE call, causing the large box to never
be terminated on that man page:

tcl8.4.1/doc/GetHostName.3
tcl8.4.1/doc/StdChannels.3
tcl8.4.1/doc/TCL_MEM_DEBUG.3
tcl8.4.1/doc/memory.n

tk8.4.1/doc/GetHINSTANCE.3
tk8.4.1/doc/cursors.n