Align Flags in Help Output with Actually Processed Flags

[DiCanio]

Within the help output of the start-zars-and-num-node.sh script the following flag is described: --disable-result-obfuscation.
However, this is not the flag which is actually processed. The flag that's processed is --disable-obfuscation.

Since this will inevitably lead to wrong usage with unexpected outcome for the user, these flags should get aligned.