Backport upstream patch that fixes wildcard completion

Upstream commit:

commit 6ffde95c7ea257ff60cb51a263a8d33f4bb0898b
Author: dmerge <25472575+dmerge@users.noreply.github.com>
Date:   Fri Apr 20 22:14:08 2018 -0700

    _filedir: Refactor to remove heredoc-dependent loop

refactors the function _filedir, and, perhaps accidentally, fixes
completion when wildcards are used.

The backport doesn't completely solve the problem of wildcard (`*')
completion, because wildcards never get expanded, even when a single
match is available, nor do options get listed when TAB is pressed twice.
To get that behaviour, the following patch would be needed:

    $ diff -U4 /usr/share/bash-completion/bash_completion.BACKUP /usr/share/bash-completion/bash_completion
    --- /usr/share/bash-completion/bash_completion.BACKUP	2018-11-10 17:34:08.432870898 -0200
    +++ /usr/share/bash-completion/bash_completion	2018-11-10 17:34:12.304421632 -0200
    @@ -587,8 +587,10 @@
         if [[ ${#toks[@]} -ne 0 ]]; then
             # 2>/dev/null for direct invocation, e.g. in the _filedir unit test
             compopt -o filenames 2>/dev/null
             COMPREPLY+=( "${toks[@]}" )
    +    else
    +	compopt -o bashdefault 2>/dev/null
         fi
     } # _filedir()

Since this extra fix could cause unpredicted, undesired side-effects,
further discussion is required.

1 files changed, 1 insertions, 0 deletions

diff --git a/debian/changelog b/debian/changelog
index f7de9575..ec6438bf 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -6,6 +6,7 @@ bash-completion (1:2.8-3) UNRELEASED; urgency=medium
 
   [Gabriel F. T. Gomes <gabriel@inconstante.eti.br>]
   * Revert `Extra fix for man completion' (from version 1:2.8-2).
+  * Fix wildcard completion.  (Closes: #891667).
 
  -- Gabriel F. T. Gomes <gabriel@inconstante.eti.br>  Sun, 04 Nov 2018 18:48:03 -0200