[lasem] tests: avoid compare version output at the start of lsm-test.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit fc1b588168af2445edf549cc5664152beb10373d
Author: Emmanuel Pacaud <emmanuel gnome org>
Date:   Tue Oct 23 16:25:56 2012 +0200

    tests: avoid compare version output at the start of lsm-test.

 tests/lsmtest.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/tests/lsmtest.c b/tests/lsmtest.c
index 62ef09d..1a3c681 100644
--- a/tests/lsmtest.c
+++ b/tests/lsmtest.c
@@ -485,16 +485,18 @@ lasem_test_process_dir (const char *name, gboolean compare, gboolean dry_run, St
 static gboolean
 check_for_compare (void)
 {
-	char *result;
+	char *result, *output;
 
-	g_spawn_command_line_sync ("compare --version", NULL, &result, NULL, NULL);
+	g_spawn_command_line_sync ("compare --version", &output, &result, NULL, NULL);
+
+	g_free (output);
 
 	if (result != NULL) {
 		g_free (result);
 		return TRUE;
 	}
 
-	g_printf ("lsm-test requires compare tool from ImageMagick\n");
+	g_printf ("Compare utility not found.\nPlease install ImageMagick.\n");
 	return FALSE;
 }