CDRIVER-621 fix groff output in man pages
CDRIVER-621 fix groff output in man pages

paulmelnikow/libbson,ajdavis/libbson,paulmelnikow/libbson,rcsanchez97/libbson,Machyne/libbson,ksuarz/libbson,Machyne/libbson,alexeyvo/libbson,mongodb/libbson,Convey-Compliance/libbson,Machyne/libbson,paulmelnikow/libbson,mapr/libbson,Convey-Compliance/libbson,Convey-Compliance/libbson,bjori/libbson,ksuarz/libbson,rcsanchez97/libbson,bjori/libbson,mapr/libbson,ajdavis/libbson,paulmelnikow/libbson,mongodb/libbson,alexeyvo/libbson,alexeyvo/libbson,rcsanchez97/libbson,Machyne/libbson,mongodb/libbson,bjori/libbson,ksuarz/libbson,ajdavis/libbson,paulmelnikow/libbson,mapr/libbson