Minor formatting fixes from Lite2

Correct return value of putenv(3), also from Lite2

src/lib/libc/stdlib/getenv.3

@@ -1,5 +1,5 @@
-.\" Copyright (c) 1988, 1991 The Regents of the University of California.
-.\" All rights reserved.
+.\" Copyright (c) 1988, 1991, 1993
+.\"    The Regents of the University of California.  All rights reserved.
 .\"
 .\" This code is derived from software contributed to Berkeley by
 .\" the American National Standards Committee X3, on Information
@@ -33,10 +33,9 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     from: @(#)getenv.3	6.11 (Berkeley) 6/29/91
-.\"	$Id: getenv.3,v 1.1.1.1 1995/10/18 08:42:17 deraadt Exp $
+.\"	$OpenBSD: getenv.3,v 1.2 1996/08/10 05:03:00 tholo Exp $
 .\"
-.Dd June 29, 1991
+.Dd December 11, 1993
 .Dt GETENV 3
 .Os
 .Sh NAME
@@ -75,7 +74,7 @@ function obtains the current value of the environment variable,
 .Ar name .
 If the variable
 .Ar name
-is not in the current environment ,
+is not in the current environment,
 a null pointer is returned.
 .Pp
 The
@@ -121,7 +120,7 @@ return zero if successful; otherwise the global variable
 is set to indicate the error and a
 \-1 is returned.
 .Sh ERRORS
-.Bl -tag -width Er
+.Bl -tag -width [ENOMEM]
 .It Bq Er ENOMEM
 The function
 .Fn setenv

src/lib/libc/stdlib/putenv.c

@@ -1,6 +1,6 @@
 /*-
- * Copyright (c) 1988 The Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1988, 1993
+ *     The Regents of the University of California.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -32,8 +32,7 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-/*static char *sccsid = "from: @(#)putenv.c	5.4 (Berkeley) 2/23/91";*/
-static char *rcsid = "$Id: putenv.c,v 1.1.1.1 1995/10/18 08:42:18 deraadt Exp $";
+static char *rcsid = "$OpenBSD: putenv.c,v 1.2 1996/08/10 05:03:00 tholo Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <stdlib.h>
@@ -43,17 +42,17 @@ int
 putenv(str)
 	const char *str;
 {
-	register char *p, *equal;
+	char *p, *equal;
 	int rval;
 
-	if (!(p = strdup(str)))
-		return(1);
-	if (!(equal = strchr(p, '='))) {
+	if ((p = strdup(str)) == NULL)
+		return (-1);
+	if ((equal = strchr(p, '=')) == NULL) {
 		(void)free(p);
-		return(1);
+		return (-1);
 	}
 	*equal = '\0';
 	rval = setenv(p, equal + 1, 1);
 	(void)free(p);
-	return(rval);
+	return (rval);
 }