[PATCH] selftests/damon: change wrong json.dump usage to json.dumps

[Sang-Heon Jeon <ekffu200098@gmail.com>]

To print drgn status to stdout json.dumps should be used without
json.dump. Change incorrect function call by typo.

Fixes: 441f487d6ebf ("selftests/damon: test no-op commit broke DAMON status")
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
---
First I'm sorry that make you guys work twice. This is fix of my last
patch [1]. I'll be more careful next time.

[1] https://lore.kernel.org/damon/20250810124354.16456-1-ekffu200098@gmail.com/

---
 tools/testing/selftests/damon/sysfs_no_op_commit_break.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/damon/sysfs_no_op_commit_break.py b/tools/testing/selftests/damon/sysfs_no_op_commit_break.py
index f557587ebc81..2c65cffe6b54 100755
--- a/tools/testing/selftests/damon/sysfs_no_op_commit_break.py
+++ b/tools/testing/selftests/damon/sysfs_no_op_commit_break.py
@@ -62,8 +62,8 @@ def main():
         exit(1)
 
     if before_commit_status != after_commit_status:
-        print(f'before: {json.dump(before_commit_status, indent=2)}')
-        print(f'after: {json.dump(after_commit_status, indent=2)}')
+        print(f'before: {json.dumps(before_commit_status, indent=2)}')
+        print(f'after: {json.dumps(after_commit_status, indent=2)}')
         exit(1)
 
     kdamonds.stop()
-- 
2.43.0