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-rw-r--r--tests/qtest/bios-tables-test.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index b482f76c03..c315156858 100644
--- a/tests/qtest/bios-tables-test.c
+++ b/tests/qtest/bios-tables-test.c
@@ -469,7 +469,7 @@ static void test_acpi_asl(test_data *data)
fflush(stderr);
if (getenv("V")) {
const char *diff_env = getenv("DIFF");
- const char *diff_cmd = diff_env ? diff_env : "diff -u";
+ const char *diff_cmd = diff_env ? diff_env : "diff -U 16";
char *diff = g_strdup_printf("%s %s %s", diff_cmd,
exp_sdt->asl_file, sdt->asl_file);
int out = dup(STDOUT_FILENO);