Tag transient failure on JDK 11

Author: eregon

spec/tags/core/process/exec_tags.txt

@@ -20,3 +20,4 @@ slow:Process.exec with a command array raises an ArgumentError if the Array does
 slow:Process.exec with an options Hash with Integer option keys maps the key to a file descriptor in the child that inherits the file descriptor from the parent specified by the value
 slow:Process.exec with an options Hash with Integer option keys lets the process after exec have specified file descriptor despite close_on_exec
 slow:Process.exec with an options Hash with Integer option keys sets close_on_exec to false on specified fd even when it fails
+jvm(transient, JDK11, since PR 1232):Process.exec with an options Hash with Integer option keys maps the key to a file descriptor in the child that inherits the file descriptor from the parent specified by the value