child profile names don't allow '-'

[Jamie Strandboge]

Profile names are allowed to have '-' in their name, such as 'ubuntu-calculator-app. However, '-' is not allowed in a child profile name, so the following fails:

$ cat /tmp/bad ; apparmor_parser -p /tmp/bad
profile foo-app {
  /bin/bar Cx -> bar-app,

  profile bar-app {
  }
}
profile foo-app {
AppArmor parser error for /tmp/bad in /tmp/bad at line 2: Found unexpected character: '-'
  /bin/bar Cx -> bar-[1]

Workaround: use '_' instead:
$ apparmor_parser -p /tmp/f
profile foo-app {
  /bin/bar Cx -> bar_app,

  profile bar_app {
  }
}