--- /dev/null	2017-11-16 08:17:56.803999947 +0100
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.debug/src/org/graalvm/compiler/debug/doc-files/PrintGraphHelp.txt	2019-03-09 03:57:49.185393327 +0100
@@ -0,0 +1,6 @@
+Where IdealGraphVisualizer graph dumps triggered by Dump or DumpOnError should be written.
+The accepted values are:
+      File - Dump IGV graphs to the local file system (see DumpPath).
+   Network - Dump IGV graphs to the network destination specified by PrintGraphHost and PrintGraphPort.
+             If a network connection cannot be opened, dumping falls back to file dumping. 
+   Disable - Do not dump IGV graphs.
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