[PATCH 2/3] fixup for patch 2: actually check the return value

[Matthieu Moy <Matthieu.Moy@imag.fr>]

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
---
I won't fight for this, but I think it makes sense.

 t/t1308-config-set.sh |  4 ++--
 test-config.c         | 10 ++++++----
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/t/t1308-config-set.sh b/t/t1308-config-set.sh
index ea031bf..f0307b7 100755
--- a/t/t1308-config-set.sh
+++ b/t/t1308-config-set.sh
@@ -168,7 +168,7 @@ test_expect_success 'find value_list for a key from a configset' '
 '
 
 test_expect_success 'proper error on non-existant files' '
-	echo "Error reading configuration file non-existant-file." >expect &&
+	echo "Error (-1) reading configuration file non-existant-file." >expect &&
 	test_expect_code 2 test-config configset_get_value foo.bar non-existant-file 2>actual &&
 	test_cmp expect actual
 '
@@ -176,7 +176,7 @@ test_expect_success 'proper error on non-existant files' '
 test_expect_success 'proper error on non-accessible files' '
 	chmod -r .git/config &&
 	test_when_finished "chmod +r .git/config" &&
-	echo "Error reading configuration file .git/config." >expect &&
+	echo "Error (-1) reading configuration file .git/config." >expect &&
 	test_expect_code 2 test-config configset_get_value foo.bar .git/config 2>actual &&
 	test_cmp expect actual
 '
diff --git a/test-config.c b/test-config.c
index cad35f4..9dd1b22 100644
--- a/test-config.c
+++ b/test-config.c
@@ -86,8 +86,9 @@ int main(int argc, char **argv)
 		}
 	} else if (!strcmp(argv[1], "configset_get_value")) {
 		for (i = 3; i < argc; i++) {
-			if (git_configset_add_file(&cs, argv[i])) {
-				fprintf(stderr, "Error reading configuration file %s.\n", argv[i]);
+			int err;
+			if ((err = git_configset_add_file(&cs, argv[i]))) {
+				fprintf(stderr, "Error (%d) reading configuration file %s.\n", err, argv[i]);
 				goto exit2;
 			}
 		}
@@ -103,8 +104,9 @@ int main(int argc, char **argv)
 		}
 	} else if (!strcmp(argv[1], "configset_get_value_multi")) {
 		for (i = 3; i < argc; i++) {
-			if (git_configset_add_file(&cs, argv[i])) {
-				fprintf(stderr, "Error reading configuration file %s.\n", argv[i]);
+			int err;
+			if ((err = git_configset_add_file(&cs, argv[i]))) {
+				fprintf(stderr, "Error (%d) reading configuration file %s.\n", err, argv[i]);
 				goto exit2;
 			}
 		}
-- 
2.0.0.262.gdafc651