debug setting does not turn on tracing for scripts called by init

[Glenn Washburn]

Version: 0.130ubuntu3.9
Severity: normal

When adding "debug" to the kernel commandline debug output is turned on and is very useful for debugging. However, none of the scripts (eg. local-premount/resume) recognize the debug variable to turn on tracing as in init. I simply added the line '[ -n "${debug}" ] && set -x' as the first line in local-premount/resume and now I get debug logging when the debug kernel parameter is added. This line should be added to all scripts, or at least the scripts run by "run_parts".