Normalizing newlines around <li> in runtests.pl. This now matches the behavior of unit tests.
Normalizing newlines around <li> in runtests.pl. This now matches the behavior of unit tests.

AMDL/CommonMark.NET,Mosoc/CommonMark.NET,dudb/CommonMark.NET,dut3062796s/CommonMark.NET,AMDL/CommonMark.NET,Mosoc/CommonMark.NET,lostfictions/CommonMark.NET,laedit/CommonMark.NET,laedit/CommonMark.NET,lostfictions/CommonMark.NET,dut3062796s/CommonMark.NET,dudb/CommonMark.NET