make completions that use _command also work with file names

bash_completion

@@ -1581,8 +1581,9 @@ _command_offset()
     _get_comp_words_by_ref cur
 
     if [[ $COMP_CWORD -eq 0 ]]; then
+        local IFS=$'\n'
         compopt -o filenames
-        COMPREPLY=( $( compgen -c -- "$cur" ) )
+        COMPREPLY=( $( compgen -d -c -- "$cur" ) )
     else
         cmd=${COMP_WORDS[0]} compcmd=${COMP_WORDS[0]}
         # Do we have full path completion for $cmd?

test/lib/completions/time.exp

@@ -4,7 +4,7 @@ proc setup {} {
 
 
 proc teardown {} {
-    assert_env_unmodified
+    assert_env_unmodified {/OLDPWD=/d}
 }
 
 
@@ -17,4 +17,20 @@ assert_complete_any "time set"
 sync_after_int
 
 
+set test "-p find -typ should complete find's options"
+assert_complete "-type" "time -p find -typ" $test
+
+
+sync_after_int
+
+
+set test "it should be possible to complete file paths"
+set dir $::srcdir/fixtures/shared
+set files [split [exec bash -c "cd $dir/bin && ls -p"] "\n"]
+assert_complete_dir $files "time ./bin/" $dir $test
+
+
+sync_after_int
+
+
 teardown