[Users] errors in avpops module documentation

[Juha Heinanen]

looks like avpops module documentation does not allow pseudo variables
as avp names although, for example, avp_pushto function does support
them.

1.5.7. avp_pushto(destination,name)
...

name - which AVP(s) should be pushed into the SIP message. Parameter syntax is:

    * name = ( avp_name | avp_alias )['/'flags]
    * flags = 'g' 

and

1.3. AVP naming format

The format of the parameters specifying an AVP in functions exported by
this module is: $avp(avp_flags:avp_name) or $avp(avp_alias).

according to above, for example.

		avp_pushto("$ru/domain", "$fd");

should not work, but it does (at least in 1.1.0).

-- juha