Parsing issue with 2.1.0.p1

[Chip Seraphine]

I'm upgrading from 2.0.6 -> 2.1.0p1 and found a nuisance issuye with the 
new parser.

In the past, I have been able to do this:

control:
        sunos::
                some_sunonly_command = ( /path/to/command )
                AddClasses = ( run_some_command )


shellcommands:
        run_some_command::
                "$(some_sunonly_command) arg1 arg2"


Since only Sun machines are running the command path'd in the 
some_sunonly_command variable, I have never needed to define the var on 
other platforms.  Now, however, when I run this script on a !sunos 
machine, I get ye olde "absolute path" issue:


cf:cfengine::/var/cfengine/inputs/cf.main:1428: scripts or commands must 
have absolute path names
cfengine: concerns: $(coreadm) -g '/var/core/core.%f.%u-%p' -e log -e 
global -d process
cfengine:beer::Execution terminated after parsing due to errors in program


I hacked around it by prefixing the variable expansion with a slash, or 
by defining a bogus path on non-Sun machines.  But it would be much 
nicer if the parser would just not worry about the absolute-pathness of 
commands that aren't being run :-)