initial solution - does not account for OS type yet
fixed sudo value return to use supplied path
added tests for command pattern 2 and 3, fixed code in build_command gsubs
Add have_ipv4_address matcher to interface type.
Use `ip addr show <interface>`.
bumped rspec version, ignore my sudo draft method, parameterized sudo_path in spec
remove unnecessary file from .gitignore
remove unnecessary file from .gitignore
added missing 'after' to reset sudo_path
Merge pull request #228 from ryotarai/add-ipaddress-matcher

Add have_ipv4_address matcher to interface type.
Merge remote-tracking branch 'pr/229/head'
Bump up version
Change rspec dependency
Add with_version to be_installed for debian.
Merge remote-tracking branch 'pr/230/head'
not version.nil? -> version
Bump up version
Add check_zfs to Linux commands
Merge pull request #231 from treydock/add_check_zfs_to_linux

Add check_zfs to Linux commands
Bump up version