patch 8.2.4649: various formatting problems

Problem:    Various formatting problems.
Solution:   Improve the code formatting.
diff --git a/src/register.c b/src/register.c
index 89d4232..79e6021 100644
--- a/src/register.c
+++ b/src/register.c
@@ -2399,8 +2399,8 @@
 			msg_puts_attr("^J", attr);
 			n -= 2;
 		    }
-		    for (p = yb->y_array[j]; *p && (n -= ptr2cells(p)) >= 0;
-									   ++p)
+		    for (p = yb->y_array[j];
+				    *p != NUL && (n -= ptr2cells(p)) >= 0; ++p)
 		    {
 			clen = (*mb_ptr2len)(p);
 			msg_outtrans_len(p, clen);