The pagination causes it to wait for a keypress even with no output
under emacs (complaining about the terminal); we don't want it anyway.
Example output:
Makefile:228:#lighnting!
Identified a likely misspelling of the word "lightning" (see above). Please fix.
Is this warning incorrect? Please teach tools/check-spelling.sh about the exciting new word.
Makefile:230: recipe for target 'check-spelling' failed
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>