NetBSD/src 95uc5XQbin/sh var.c sh.1

   Implement:
        readonly -q VAR...
        readonly -p VAR...
        export -q [-x] VAR...
        export -p [-x] VAR...

   all available only in !SMALL shells - and while here, limit
   "export -x" to full sized shells as well.

   Also, do a better job of arg checking and validating of the
   export and readonly commands (which is really just one built-in)
   and of issuing error messages when something bogus is detected.

   Since these commands are special builtin commands, any error
   causes shell exit (for non-interactive shells).
VersionDeltaFile
1.74+137-42bin/sh/var.c
1.213+105-18bin/sh/sh.1
+242-602 files

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