Cleanup mail(1)'s varying styles by converting to using style(9).

Also take a stab at cleaning up BDECFLAGS and convert all uses of
NOSTR, NIL, NONE, NOVAR, NOGRP, NOGE to NULL. Also kill 'register' to
get diffs somewhat closer to OpenBSD/NetBSD.

There are no functional changes however.
Reviewed by:	nra (visual inspection)

1 files changed, 5 insertions, 6 deletions

diff --git a/usr.bin/mail/getname.c b/usr.bin/mail/getname.c
index dc812d5..4062e93 100644
--- a/usr.bin/mail/getname.c
+++ b/usr.bin/mail/getname.c
@@ -46,8 +46,7 @@ static const char rcsid[] =
 /* Getname / getuserid for those with hashed passwd data base). */
 
 /*
- * Search the passwd file for a uid. Return name on success,
- * NOSTR on failure
+ * Search the passwd file for a uid. Return name on success, NULL on failure.
  */
 char *
 getname(uid)
@@ -56,8 +55,8 @@ getname(uid)
 	struct passwd *pw;
 
 	if ((pw = getpwuid(uid)) == NULL)
-		return NOSTR;
-	return pw->pw_name;
+		return (NULL);
+	return (pw->pw_name);
 }
 
 /*
@@ -71,6 +70,6 @@ getuserid(name)
 	struct passwd *pw;
 
 	if ((pw = getpwnam(name)) == NULL)
-		return -1;
-	return pw->pw_uid;
+		return (-1);
+	return (pw->pw_uid);
 }