Define struct log separately from log to avoid confusing column breaker

ee1b3306 · Austin Clements · a14c96f8 · ee1b3306
--- a/log.c
+++ b/log.c
@@ -38,14 +38,15 @@ struct logheader {
  int sector[LOGSIZE];
 };

-struct {
+struct log {
  struct spinlock lock;
  int start;
  int size;
  int intrans;
  int dev;
  struct logheader lh;
-} log;
+};
+struct log log;

 static void recover_from_log(void);