Allow commented out "-name" lines.

[jamesproud]

Example vm.args:

-name riak@127.0.0.1

-name riak@127.0.0.2

riak-admin concatenates the above as "#-name riak@127.0.0.1 -name riak@127.0.0.2" currently.

[n00k]

shouldn't the regex be '^-[s]*name', so it will match
-name riak@node.host
but not a commented name like
#-name test-riak@node.hode
or a comment about the switch like
#use the -name switch to specify the name of the node
or another switch that happens to contain that like
-administrator-name admin

[seancribbs]

Also note that [s]*name is wrong and should be s?name. Erlang will ignore a switch like -sssssssssname. I vote for grep "^[[:space:]]*-s\?name"

[bookshelfdave]

I tested all cases mentioned above on OSX and the regex grep "^[[:space:]]*-s\?name" works. We'll need to test on other platforms as well.

[bookshelfdave]

Tested on OSX, Ubuntu 12.04 x64, FreeBSD 9 x64

[bookshelfdave]

My apologies, I recreated this fix in branch dip_gh169 as I was unsure about my rebase/squash.

Please see #175