One extra empty line not in OpenBSD, and tweak a #define style.

proc.c

@@ -190,7 +190,6 @@ proc_start(const char *name, struct event_base *base, int forkflag,
 	}
 
 	log_open(name);
-
 	setproctitle("%s (%s)", name, socket_path);
 
 	if (uname(&u) < 0)

tools/cmp-cvs.sh

@@ -4,7 +4,7 @@ rm diff.out
 touch diff.out
 
 for i in *.[ch]; do
-    diff -u $i /usr/src/usr.bin/tmux/$i >diff.tmp
+    diff -u -I'\$OpenBSD' $i /usr/src/usr.bin/tmux/$i >diff.tmp
     set -- `wc -l diff.tmp`
     [ $1 -eq 8 ] && continue
     echo $i

xmalloc.h

@@ -20,7 +20,7 @@
 #define XMALLOC_H
 
 #if !defined(__bounded__)
-# define __bounded__(x, y, z)
+#define __bounded__(x, y, z)
 #endif
 
 void	*xmalloc(size_t);