Add --debug to the man page, and other minor tweaks.
Add --debug to the man page, and other minor tweaks.

nedbat/coveragepy,7WebPages/coveragepy,hugovk/coveragepy,hugovk/coveragepy,7WebPages/coveragepy,jayhetee/coveragepy,jayhetee/coveragepy,larsbutler/coveragepy,nedbat/coveragepy,larsbutler/coveragepy,blueyed/coveragepy,larsbutler/coveragepy,7WebPages/coveragepy,nedbat/coveragepy,larsbutler/coveragepy,blueyed/coveragepy,blueyed/coveragepy,larsbutler/coveragepy,blueyed/coveragepy,nedbat/coveragepy,nedbat/coveragepy,hugovk/coveragepy,jayhetee/coveragepy,7WebPages/coveragepy,hugovk/coveragepy,hugovk/coveragepy,jayhetee/coveragepy,blueyed/coveragepy,jayhetee/coveragepy