(nettle_buffer_init_realloc): Use an explicit pointer for realloc

argument.

Rev: nettle/buffer.c:1.2
Rev: nettle/buffer.h:1.2

buffer.c

@@ -61,7 +61,7 @@ nettle_buffer_grow(struct nettle_buffer *buffer,
 void
 nettle_buffer_init_realloc(struct nettle_buffer *buffer,
 			   void *realloc_ctx,
-			   nettle_realloc_func realloc)
+			   nettle_realloc_func *realloc)
 {
   buffer->contents = NULL;
   buffer->alloc = 0;

buffer.h

@@ -52,7 +52,7 @@ nettle_buffer_init(struct nettle_buffer *buffer);
 void
 nettle_buffer_init_realloc(struct nettle_buffer *buffer,
 			   void *realloc_ctx,
-			   nettle_realloc_func realloc);
+			   nettle_realloc_func *realloc);
 
 /* Initializes a buffer of fix size */
 void