Inconsistent function calls to print_help

[blee]

The calls to print_help:

blee@lancer.b1c1l1 ~/src/confman/trunk $ grep print_help confman.in
                print_help 1
            print_help 1
            print_help 1
            print_help 1
        h) shift ; print_help "$@" ; conf_cleanExit 0 ;;
    help )                          print_help "$@" ; conf_cleanExit 0 ;;

don't quite line up with what it expects as arguments:

  case $1 in

return $2

This also breaks 'confman help' calls that specify more than one argument:

blee@civic.b1c1l1 ~ $ confman help recipe list
confman manages configuration files

Usage:
  confman recipe [ get | list ]
  confman recipe [ create | edit | print | remove | set ] recipe_name

The recipe command provides an interface to manage confman recipes.

    create      Create a recipe with the given name
    edit        Edit a recipe with the given name
    get         Print the host's recipe
    list        List all recipes
    print       Print the given recipe
    remove      Delete a recipe with the given name
    set         Set the host's recipe to the given name

Recipe

confman[44711]: blee: /usr/local/share/confman/confmandoc.sh: line 508: return: list: numeric argument required

[blee]

(In [443]) Fix multiple calls to print_help that were intended to call print_usage.

See #79

[blee]

(In [444]) print_help doesn't expect to receive an rc from its caller.

See #79

[blee]

(In [445]) print_help doesn't expect to receive an rc from its caller.

See #79

[blee]

(In [448]) Merge from trunk multiple help-related fixes.

Fixes #75, #78, #79