[cros_run_vm_test]: Fix typo in results_dir

Also don't output kvm command twice.

BUG=chromium:782664
TEST=manual

Change-Id: I93e06b8e3a242727c82bdb66e322d43224e350cf
Reviewed-on: https://chromium-review.googlesource.com/905814
Commit-Ready: Achuith Bhandarkar <achuith@chromium.org>
Tested-by: Achuith Bhandarkar <achuith@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
diff --git a/scripts/cros_vm.py b/scripts/cros_vm.py
index 7c9287e..ca2d379 100644
--- a/scripts/cros_vm.py
+++ b/scripts/cros_vm.py
@@ -273,10 +273,11 @@
       qemu_args.append('-enable-kvm')
     if not self.display:
       qemu_args.extend(['-display', 'none'])
-    logging.info(cros_build_lib.CmdToStr(qemu_args))
     logging.info('Pid file: %s', self.pidfile)
     if not self.dry_run:
       self._RunCommand(qemu_args)
+    else:
+      logging.info(cros_build_lib.CmdToStr(qemu_args))
 
   def _GetVMPid(self):
     """Get the pid of the VM.