fix typos; while here, improve spacing in comments.

changes to libevent and zlib headers sent to the upstream maintainers.
ok jmc@ (for typos), millert@

src/include/langinfo.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: langinfo.h,v 1.5 2005/11/16 16:48:14 espie Exp $	*/
+/*	$OpenBSD: langinfo.h,v 1.6 2011/07/07 14:25:15 sobrado Exp $	*/
 /*	$NetBSD: langinfo.h,v 1.3 1995/04/28 23:30:54 jtc Exp $	*/
 
 /*
@@ -63,8 +63,8 @@
 
 #define RADIXCHAR	44	/* Radix character */
 #define THOUSEP		45	/* Separator for thousands */
-#define YESSTR		46	/* Affirmitive response for yes/no queries */
-#define YESEXPR		47	/* Affirmitive response for yes/no queries */
+#define YESSTR		46	/* Affirmative response for yes/no queries */
+#define YESEXPR		47	/* Affirmative response for yes/no queries */
 #define NOSTR		48	/* Negative response for yes/no queries */
 #define NOEXPR		49	/* Negative response for yes/no queries */
 #define CRNCYSTR	50	/* Currency symbol */

src/include/netdb.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: netdb.h,v 1.28 2011/04/05 00:46:06 matthew Exp $	*/
+/*	$OpenBSD: netdb.h,v 1.29 2011/07/07 14:25:15 sobrado Exp $	*/
 
 /*
  * ++Copyright++ 1980, 1983, 1988, 1993
@@ -144,7 +144,7 @@ struct	protoent {
 #define	NETDB_INTERNAL	-1	/* see errno */
 #define	NETDB_SUCCESS	0	/* no problem */
 #define	HOST_NOT_FOUND	1 /* Authoritative Answer Host not found */
-#define	TRY_AGAIN	2 /* Non-Authoritive Host not found, or SERVERFAIL */
+#define	TRY_AGAIN	2 /* Non-Authoritative Host not found, or SERVERFAIL */
 #define	NO_RECOVERY	3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
 #define	NO_DATA		4 /* Valid name, no data record of requested type */
 #define	NO_ADDRESS	NO_DATA		/* no address */