removed leading double underscores for include guards

diff --git a/chacha20.h b/chacha20.h
index d8e4518311fdf8e971152966af74b2969bc21129..91c07490b59a7e07ecae4139f58a765720889e99 100644 (file)
--- a/chacha20.h
+++ b/chacha20.h
@@ -1,5 +1,5 @@
-#ifndef __CHACHA20__
-#define __CHACHA20__
+#ifndef CHACHA20_H
+#define CHACHA20_H
 
 #include <inttypes.h>
 #include <stddef.h>
@@ -93,4 +93,4 @@ crypto_init_rng(crypto_rng_context *ctx, const uint8_t key[32]);
 void
 crypto_random_bytes(crypto_rng_context *ctx, uint8_t *out, size_t nb_bytes);
 
-#endif // __CHACHA20__
+#endif // CHACHA20_H