Fix quoting issues (#21)

Signed-off-by: Max Harmathy <[email protected]>

Author: harmathy

openstack_workload_generator

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-rundir="$(dirname $(readlink -f $0))"
+rundir="$(dirname "$(readlink -f "$0")")"
 cd "$rundir" || exit 1
 
 modification_time(){