long option support for tar broken with version 2.4

[bitstreamout]

Try

tar --create --file test.tar <TAB>

does show only option but no files nor directories

tar --create -f test.tar -<TAB>
-A -c -d -r -t -u -x

... the same for mixed options

tar --create -f test.tar <TAB>
tar --create f test.tar <TAB>

[bitstreamout]

A patch
x.txt

[scop]

@bitstreamout Could you file a pull request along with test case demonstrating the failure and the fix for this?

@praiskup FYI

[praiskup]

Marking those options as "mode" options looks like a correct fix. Thanks for the patch!

[akinomyoga]

The issue is still present. Even worse, when completing the word ./, it seems to produce the option names as filenames.

$ tar --create --file a.tar.gz ./[TAB]
./A  ./c  ./d  ./r  ./t  ./u  ./x