Clariefiedusage/purpose of modelsim_copy_files and quartus_copy_files.

tools/hdltool_readme.txt

@@ -378,7 +378,8 @@ d) hdllib.cfg key descriptions
 
 - quartus_copy_files =
     Copy listed all directories and files for synthesis with Quartus, used when tool_name_synth = quartus in hdltool.cfg.
-    Can be used to eg. copy sopc or qsys file from SVN directory to the build directory where the Quartus project file is
+    Can be used to eg. copy sopc or qsys file from SVN directory to the build directory where the Quartus project file is and that is where the
+    run_* bash commands expect them to be.
     
 - synth_files =
     All HDL files that are needed for synthesis. For Modelsim they need to be in compile order and they areplaced in the 'synth_files' project folder.