cosmetic: Fix trailing whitespace

Change-Id: Ib79b0e0c728a7f4de0b3884785c73ab2d0d44f4e
diff --git a/include/osmocom/gsm/gsm0808.h b/include/osmocom/gsm/gsm0808.h
index 20137da..b921eda 100644
--- a/include/osmocom/gsm/gsm0808.h
+++ b/include/osmocom/gsm/gsm0808.h
@@ -255,7 +255,7 @@
 
 	bool chosen_encr_alg_present;
 	uint8_t chosen_encr_alg;
-	
+
 	bool chosen_channel_present;
 	uint8_t chosen_channel;