Writes out all user-defined languages, placeholders, tokens,
    aliases, and packages to an environment file.
    Format
      SAVE ENVIRONMENT   file-spec
1 – Qualifiers
1.1 /ALL
       /ALL (D)
    Specifies that LSE write all defined items to the environment
    file.
1.2 /NEW
    Specifies that LSE write out only those definitions you made
    during the current editing session. Definitions that were read
    in from an environment file are not written.
2 – Parameter
 file-spec
    Specifies the file to which LSE should write the environment data.