Some whitespace and comment fixes.

gcm-aes.c

@@ -67,5 +67,4 @@ gcm_aes_digest(struct gcm_aes_ctx *ctx,
 	       size_t length, uint8_t *digest)
 {
   GCM_DIGEST(ctx, aes_encrypt, length, digest);
-  
 }

macros.h

@@ -108,7 +108,7 @@ do {						\
   (p)[1] = ((i) >> 8) & 0xff;			\
   (p)[0] = (i) & 0xff;				\
 } while (0)
-    
+
 #define LE_READ_UINT32(p)			\
 (  (((uint32_t) (p)[3]) << 24)			\
  | (((uint32_t) (p)[2]) << 16)			\
@@ -145,7 +145,7 @@ do {						\
    just 32 - n and 64 - n results in undefined behaviour). Most uses
    of these macros use a constant and non-zero rotation count. */
 #define ROTL32(n,x) (((x)<<(n)) | ((x)>>((-(n)&31))))
-  
+
 #define ROTL64(n,x) (((x)<<(n)) | ((x)>>((-(n))&63)))
 
 /* Requires that size > 0 */
@@ -222,8 +222,8 @@ do {						\
     /* Set the first char of padding to 0x80. This is safe since there	\
        is always at least one byte free */				\
 									\
-    assert(__md_i < sizeof((ctx)->block));					\
-    (ctx)->block[__md_i++] = 0x80;						\
+    assert(__md_i < sizeof((ctx)->block));				\
+    (ctx)->block[__md_i++] = 0x80;					\
 									\
     if (__md_i > (sizeof((ctx)->block) - (size)))			\
       { /* No room for length in this block. Process it and		\
@@ -235,7 +235,7 @@ do {						\
       }									\
     memset((ctx)->block + __md_i, 0,					\
 	   sizeof((ctx)->block) - (size) - __md_i);			\
-    									\
+									\
   } while (0)
 
 #endif /* NETTLE_MACROS_H_INCLUDED */

sha256.c

@@ -126,7 +126,7 @@ sha256_digest(struct sha256_ctx *ctx,
   sha256_init(ctx);
 }
 
-/* sha224 variant. FIXME: Move to seperate file? */
+/* sha224 variant. */
 
 void
 sha224_init(struct sha256_ctx *ctx)

sha512.c

@@ -197,7 +197,7 @@ sha512_digest(struct sha512_ctx *ctx,
   sha512_init(ctx);
 }
 
-/* sha384 variant. FIXME: Move to separate file? */
+/* sha384 variant. */
 void
 sha384_init(struct sha512_ctx *ctx)
 {