fixed typo in Makefile

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@40480 4005530d-fff6-0310-9dd1-cebe43e6787f
Makefile: comment

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@40481 4005530d-fff6-0310-9dd1-cebe43e6787f