objdump -T exits with 0 even when no symbol table

[Skyscraper System Administrator]

Hi,

If it doesn't interfere with other behaviour, it
would be nice if 'objdump -T foo' would exit with
a non-zero value when foo contains no symbol table.

This is just an example I came across during some
scripting.  There may be other instances where
failing output, as specifically requested by some
flag, would warrant a non-zero exit value.

bjd