[LTP] [PATCH v4 4/6] tst_res_: Print error to stderr, with filename and lineno

[Petr Vorel]

Printing to stderr, tst_res_ filename and lineno helps debugging wrong
code. Best would be if it prints either code which invoked it or the
original message, but at least this is an improvement.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
* New in v4

 testcases/lib/tst_res_.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/testcases/lib/tst_res_.c b/testcases/lib/tst_res_.c
index c09d689ee5..5b255d4d54 100644
--- a/testcases/lib/tst_res_.c
+++ b/testcases/lib/tst_res_.c
@@ -16,7 +16,7 @@ int main(int argc, char *argv[])
 	int type, i;
 
 	if (argc < 5) {
-		printf("argc = %i expected 5\n", argc);
+		fprintf(stderr, "%s:%d: argc = %i expected 5\n", __FILE__, __LINE__, argc);
 		goto help;
 	}
 
@@ -35,7 +35,7 @@ int main(int argc, char *argv[])
 	} else if (!strcmp(argv[3], "TBROK")) {
 		type = TBROK;
 	} else {
-		printf("Wrong type '%s'\n", argv[3]);
+		fprintf(stderr, "%s:%d: Wrong type '%s'\n", __FILE__, __LINE__, argv[3]);
 		goto help;
 	}
 
-- 
2.50.1