Fix error in manpage
Fix error in manpage

To start a line with '.' in manpage it should be preceded with the
empty space escape sequence '\&'. Fix this in the direnv manpage

myfreecomm/direnv,sknop/direnv,camelpunch/direnv,camelpunch/direnv,sknop/direnv,camelpunch/direnv,camelpunch/direnv,direnv/direnv,myfreecomm/direnv,sknop/direnv,doloopwhile/direnv,doloopwhile/direnv,direnv/direnv,myfreecomm/direnv,doloopwhile/direnv,sknop/direnv