[GSoC][PATCH] t/t5000-tar-tree: add helper function

[Kostya Farber <kostya.farber@gmail.com>]

Add the helper function test_file_path_exists to the
interpret pax header test. This change makes it clearer
as to what the test is trying to check, in this case whether
a file path exists.

Signed-off-by: Kostya Farber <kostya.farber@gmail.com>
---
Hello all. I'd like to introduce myself. My name is 
Kostya, I am new to the git open source community.

I am a data engineer by trade, but have recently gotten
into (and am really enjoying) the open source world.
My main contributions have been in the scientific 
python space (https://github.com/kostyafarber).

I have read MyFirstContribution, documentation in 
t/README and the general GSoC page. I have really 
started to enjoy low-level programming and have
been going through The C Programming Language (Second
Edition) and the Linux Programming Interface.

I am planning to submit a proposal for GSoC (hopefully) and 
want to try help out and contribute to a tool I've been using
for a long time and have love for.

Keen to speak to you all soon. 

 t/t5000-tar-tree.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh
index d473048138..19d5bd0c04 100755
--- a/t/t5000-tar-tree.sh
+++ b/t/t5000-tar-tree.sh
@@ -73,7 +73,7 @@ check_tar() {
 			for header in *.paxheader
 			do
 				data=${header%.paxheader}.data &&
-				if test -h $data || test -e $data
+				if test -h $data || test_file_path_exists $data
 				then
 					path=$(get_pax_header $header path) &&
 					if test -n "$path"
-- 
2.39.0