* actually use the .com suffix, instead of .exe when creating a .com file

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25529 3ad0048d-3df7-0310-abae-a5850022a9f2
+ documented the new options -Wtexe and -Wtcom in the fpc help

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25530 3ad0048d-3df7-0310-abae-a5850022a9f2