[Fuchsia] Update to the newest spelling of launchpad calls

runtime/bin/process_fuchsia.cc

Index: runtime/bin/process_fuchsia.cc
diff --git a/runtime/bin/process_fuchsia.cc b/runtime/bin/process_fuchsia.cc
index 865ce0c387362faf2bc9119e6dad83d5ad5699e1..e766131fc7d99abda1d413838b3690cfcf39fa19 100644
--- a/runtime/bin/process_fuchsia.cc
+++ b/runtime/bin/process_fuchsia.cc
@@ -740,12 +740,12 @@ class ProcessStarter {
     // Set up the launchpad.
     launchpad_t* lp = NULL;
     launchpad_create(job, program_arguments_[0], &lp);
-    launchpad_arguments(lp, program_arguments_count_, program_arguments_);
-    launchpad_environ(lp, program_environment_);
-    launchpad_clone_mxio_root(lp);
+    launchpad_set_args(lp, program_arguments_count_, program_arguments_);
+    launchpad_set_environ(lp, program_environment_);
+    launchpad_clone(lp, LP_CLONE_MXIO_ROOT);
     // TODO(zra): Use the supplied working directory when launchpad adds an
     // API to set it.
-    launchpad_clone_mxio_cwd(lp);
+    launchpad_clone(lp, LP_CLONE_MXIO_CWD);
     launchpad_add_pipe(lp, &write_out_, 0);
     launchpad_add_pipe(lp, &read_in_, 1);
     launchpad_add_pipe(lp, &read_err_, 2);