Following 'enum bisect_error' vocabulary, return variable 'res' is
always non-positive.
Let's use '-res' instead of 'abs(res)' to make the code clearer.

Mentored-by: Christian Couder [off-list ref]
Signed-off-by: Miriam Rubio <redacted>
Helped-by: Junio C Hamano [off-list ref]
---
 builtin/bisect--helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index c452d3f6b7..0466b07a43 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c

@@ -727,5 +727,5 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
 	if (res == BISECT_INTERNAL_SUCCESS_MERGE_BASE)
 		res = BISECT_OK;
 
-	return abs(res);
+	return -res;
 }

-- 
2.25.0