manpage: assume .EX/.EE macros

Branden Robinson says macros have to go after ".TH"; the existing macros did
not match the format used in groff, etc., and can be simply removed.  The
".TQ" macro is used only without a parameter, causing an extra space to be
emitted (and fixed that by dropping the parameter).

Signed-off-by: Thomas E. Dickey <dickey@invisible-island.net>