t1405: sort reflog entries in a hash-independent way

The test enumerates reflog entries in an arbitrary order and then sorts
them.  For SHA-1, this produces results that happen to sort in
alphabetical order, but for other hash algorithms they sort differently.
Ensure we sort the reflog entries in a hash-independent way by sorting
on the ref name instead of the object ID.  Remove an assumption about
the length of a hash by using cut with the delimiter and field options
instead of the character range option.

Signed-off-by: brian m. carlson <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: bk2204

t/t1405-main-ref-store.sh

@@ -45,7 +45,7 @@ test_expect_success 'rename_refs(master, new-master)' '
 '
 
 test_expect_success 'for_each_ref(refs/heads/)' '
-	$RUN for-each-ref refs/heads/ | cut -c 42- >actual &&
+	$RUN for-each-ref refs/heads/ | cut -d" " -f 2- >actual &&
 	cat >expected <<-\EOF &&
 	master 0x0
 	new-master 0x0
@@ -71,7 +71,7 @@ test_expect_success 'verify_ref(new-master)' '
 '
 
 test_expect_success 'for_each_reflog()' '
-	$RUN for-each-reflog | sort | cut -c 42- >actual &&
+	$RUN for-each-reflog | sort -k2 | cut -c 42- >actual &&
 	cat >expected <<-\EOF &&
 	HEAD 0x1
 	refs/heads/master 0x0