buffer: Apply coding style to ssh_buffer_reinit()

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>

src/buffer.c

@@ -196,12 +196,14 @@ int ssh_buffer_reinit(struct ssh_buffer_struct *buffer)
     explicit_bzero(buffer->data, buffer->used);
     buffer->used = 0;
     buffer->pos = 0;
-  if(buffer->allocated > 127) {
+
+    if (buffer->allocated > 127) {
         if (realloc_buffer(buffer, 127) < 0) {
             return -1;
         }
     }
     buffer_verify(buffer);
+
     return 0;
 }