ios login should escape username and password

[a2]

$ ios login
Username:
username@domain.tlc
Password:
**********
sh: -c: line 0: syntax error near unexpected token `)'
sh: -c: line 0: `security add-internet-password -a username@domain.tlc -w ********** -s developer.apple.com'
Account credentials saved

My password needs to be escaped because it contains some symbols that would otherwise interfere with this shell command.

[mattt]

Patch has been applied to the Security gem, and Cupertino has been updated to 0.5.1 with the new fix.

Here's something fun: I had no idea this was in Ruby stdlib: Shellwords