cleaning up warnings

fprintf(stderr, whatever); -> fprintf(stderr, "%s", whatever);
checking return values on chdir and lockf where we weren't already

modified:   example/cusexmp.c
modified:   example/fioclient.c
modified:   util/fusermount.c

1 files changed, 1 insertions, 1 deletions

diff --git a/example/fioclient.c b/example/fioclient.c
index c056186..5f05525 100644
--- a/example/fioclient.c
+++ b/example/fioclient.c
@@ -117,6 +117,6 @@ int main(int argc, char **argv)
 	}
 
  usage:
-	fprintf(stderr, usage);
+	fprintf(stderr, "%s", usage);
 	return 1;
 }