Use gst_element_class_set_static_metadata()

where possible. Avoids some string copies. Also re-indent
some stuff. Also some indent fixes here and there.
diff --git a/gst/videoparsers/gstdiracparse.c b/gst/videoparsers/gstdiracparse.c
index 0f0bdb9..25af43d 100644
--- a/gst/videoparsers/gstdiracparse.c
+++ b/gst/videoparsers/gstdiracparse.c
@@ -113,7 +113,7 @@
   gst_element_class_add_pad_template (element_class,
       gst_static_pad_template_get (&gst_dirac_parse_sink_template));
 
-  gst_element_class_set_metadata (element_class, "Dirac parser",
+  gst_element_class_set_static_metadata (element_class, "Dirac parser",
       "Codec/Parser/Video", "Parses Dirac streams",
       "David Schleef <ds@schleef.org>");