passwd resource does not ignore comments

[chris-rock]

Description

cat /etc/passwd        
##
# User Database
# 
# Note that this file is consulted directly only when the system is running
# in single-user mode.  At other times this information is provided by
# Open Directory.
#
# See the opendirectoryd(8) man page for additional information about
# Open Directory.
##
nobody:*:-2:-2:Unprivileged User:/var/empty:/usr/bin/false

I would expect that the comments are not parsed as users:

$ inspec shell 
Welcome to the interactive InSpec Shell
To find out how to use it, type: help

inspec> passwd.users
=> ["##",
 "# User Database",
 "# ",
 "# Note that this file is consulted directly only when the system is running",
 "# in single-user mode.  At other times this information is provided by",
 "# Open Directory.",
 "#",
 "# See the opendirectoryd(8) man page for additional information about",
 "# Open Directory.",
 "##",
 "nobody",
...]
inspec> 

InSpec and Platform Version

Mac OS 10.10
InSpec 0.20.1

Replication Case

Ensure the /etc/passwd includes comments.

Possible Solutions

Extend https://github.com/chef/inspec/blob/master/lib/utils/parser.rb#L20 to handle comments properly