oss4: Fix typo in header include guard

error: 'GST_OSS4_AUDIO_H' is used as a header guard here,
followed by #define of a different macro [-Werror,-Wheader-guard]

diff --git a/sys/oss4/oss4-audio.h b/sys/oss4/oss4-audio.h
index 054ecf9..54128c0 100644 (file)
--- a/sys/oss4/oss4-audio.h
+++ b/sys/oss4/oss4-audio.h
@@ -18,7 +18,7 @@
  */
 
 #ifndef GST_OSS4_AUDIO_H
-#define GST_OSS4_AUDIO_H_
+#define GST_OSS4_AUDIO_H
 
 #include <gst/gst.h>
 #include <gst/audio/audio.h>