Windows: added comment to DoubleQuotedArgumentsOnWindowsCommandLine to explain the need for such a char replacement

Author: Federico Fissore

arduino-core/src/processing/app/tools/DoubleQuotedArgumentsOnWindowsCommandLine.java

@@ -1,8 +1,6 @@
 package processing.app.tools;
 
 import org.apache.commons.exec.CommandLine;
-import processing.app.BaseNoGui;
-import processing.app.Platform;
 import processing.app.helpers.OSUtils;
 
 import java.io.File;
@@ -23,6 +21,11 @@ public DoubleQuotedArgumentsOnWindowsCommandLine(CommandLine other) {
 
   @Override
   public CommandLine addArgument(String argument, boolean handleQuoting) {
+    // Brutal hack to workaround windows command line parsing.
+    // http://stackoverflow.com/questions/5969724/java-runtime-exec-fails-to-escape-characters-properly
+    // http://msdn.microsoft.com/en-us/library/a1y7w461.aspx
+    // http://bugs.sun.com/view_bug.do?bug_id=6468220
+    // http://bugs.sun.com/view_bug.do?bug_id=6518827
     if (argument.contains("\"") && OSUtils.isWindows()) {
       argument = argument.replace("\"", "\\\"");
     }