fix(_filedir): always set compopt -o filenames to quote special chars

This fixes test_15d in test/t/unit/test_unit_filedir.py.

Author: akinomyoga

bash_completion

@@ -1318,9 +1318,8 @@ _comp_compgen_filedir()
                     compopt -o nospace 2>/dev/null
                 fi
             done
-        else
-            compopt -o filenames 2>/dev/null
         fi
+        compopt -o filenames 2>/dev/null
     fi
 
     # Note: bash < 4.4 has a bug that all the elements are connected with

test/t/unit/test_unit_compgen_filedir.py

@@ -37,7 +37,7 @@ def functions(self, request, bash):
         )
         assert_bash_exec(
             bash,
-            "_fcd() { local cur=$(_get_cword); unset -v COMPREPLY; _comp_compgen -C _filedir filedir -d; };"
+            "_fcd() { local cur=$(_get_cword); unset -v COMPREPLY; _comp_compgen -C _filedir filedir -df; };"
             "complete -F _fcd fcd",
         )