doc bug???

[Li]

Hello everyone

I am totally a newcomer for gnupg, and I am reading the "The GNU Privacy
Handbook", the version string is "$Name: v1_1 $".

In the handbook, all command options is begin with one dash, like this
"-gen-key"; but on my system these options begin with two dash, like
this "--gen-key".

So, this is bug or other something?

OS: FreeBSD Release 7.0 p5



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