* Implemented "shell-test" command for writing shell scripts that check   whether a package is installed.  Example of use:
* Implemented "shell-test" command for writing shell scripts that check
  whether a package is installed.  Example of use:

    if ! pear shell-test Net_Socket; then
        echo "You don't have the Net_Socket package installed!" >&2
        exit 1
    fi


git-svn-id: 4b064e69dc630d28214c1e1442d27300cccf8e9a@76311 c90b9560-bf6c-de11-be94-00142212c4b1

DQNEO/PEAR_Exception