bug#47953: fennel doesn't print version with -v

[Jack Hill <jackhill@jackhill.us>]

Hi Guix,

From the fennel man page:

        -v, --version
               Print the version number and exit

However, only the long options seems to work:

jackhill@alperton ~ [env]$ fennel --version
Fennel 0.8.1 on Lua 5.3
jackhill@alperton ~ [env]$ fennel -v
runtime error: -v: No such file or directory
stack traceback:
   [C]: in function 'assert'
   ...tore/lgaycpzwfair15b4m1lvzjim0gv3l0gp-profile/bin/fennel:3630: in function ?
   [C]: in function 'xpcall'
   ...tore/lgaycpzwfair15b4m1lvzjim0gv3l0gp-profile/bin/fennel:4036: in function ?
   [C]: in ?

Other short options, like -h, do work. This isn't that annoying a problem, 
but I wonder if it presents some problem with out fennel package.

I'm using Guix commit 58d96474bdc355619890f85bf6095a79074f6ee8

Best,
Jack