[Bug manual/4690] getopt_long "--arg=val" and "--arg val" are not the same for "optional_argument"

[jakub at redhat dot com]

------- Additional Comments From jakub at redhat dot com  2007-07-02 15:38 -------
Can you cite where you saw the two forms are interchangeable?

E.g. man getopt:
A long option normally begins with `--' followed by the long option name.  If
the  option  has  a  required
argument,  it may be written directly after the long option name, separated by
`=', or as the next argument
(ie. separated by whitespace on the command line).  If the option has an 
optional  argument,  it  must  be
written  directly  after the long option name, separated by `=', if present (if
you add the `=' but nothing
behind it, it is interpreted as if no argument was present; this is a slight 
bug,  see  the  BUGS).

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http://sourceware.org/bugzilla/show_bug.cgi?id=4690

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