Merge branch 'bs/maint-1.6.0-tree-walk-prefix' into maint-1.6.1

* bs/maint-1.6.0-tree-walk-prefix:
match_tree_entry(): a pathspec only matches at directory boundaries
tree_entry_interesting: a pathspec only matches at directory boundary

diff --combined t/t4010-diff-pathspec.sh
index 9322298ecc6cb79f0123dea4e329317c5bfbfd11,4c4c8b1570c01721e8ac2c8d16837e68ecaa30f5..94df7ae53a0ef47c0ef10ca6b3215ffdf38fa399
--- 1/t/t4010-diff-pathspec.sh
--- 2/t/t4010-diff-pathspec.sh
+++ b/t/t4010-diff-pathspec.sh
@@@ -10,7 -10,7 +10,7 @@@ Prepare
          path1/file1
  '
  . ./test-lib.sh
 -. ../diff-lib.sh ;# test-lib chdir's into trash
 +. "$TEST_DIRECTORY"/diff-lib.sh ;# test-lib chdir's into trash
  
  test_expect_success \
      setup \
@@@ -62,4 -62,12 +62,12 @@@ test_expect_success 
      'git diff-index --cached $tree -- file0/ >current &&
       compare_diff_raw current expected'
  
+ test_expect_success 'diff-tree pathspec' '
+       tree2=$(git write-tree) &&
+       echo "$tree2" &&
+       git diff-tree -r --name-only $tree $tree2 -- pa path1/a >current &&
+       >expected &&
+       test_cmp expected current
+ '
+ 
  test_done