address pylint complains

C0301:3263: Line too long (154/120)
C0321:3256:do_system_show_packageversion: More than one statement on a single line
C0324:3258:do_system_show_packageversion: Comma not followed by a space
        instpkgs = self.client.system.listPackages(self.session,\
                                                               ^^
                                                        system_id)
C0322:3260:do_system_show_packageversion: Operator not preceded by a space
        searchpkg= args[1]
                 ^
C0324:3263:do_system_show_packageversion: Comma not followed by a space
                print "%s\t%s\t%s\t%s\t%s\t%s" % ( pkg.get(name),pkg.get(version),pkg.get(release), pkg.get(epoch), pkg.get(arch_label), system)
                                                                  ^^
W0612:3244:do_system_show_packageversion: Unused variable options
Automatic commit of package [spacecmd] release [2.3.5-1].