Fix random() and srandom() prototypes to match the standard.

These prototypes were needlessly different from the standard. Fix them
to be the same, and fix the surrounding code after the changes.

Sponsored by: Netflix

stand/libsa/libstand.3

@@ -169,10 +169,10 @@ may be used to prevent a variable being unset.
 .Xc
 .It Xo
 .Ft void
-.Fn srandom "unsigned long seed"
+.Fn srandom "unsigned int seed"
 .Xc
 .It Xo
-.Ft "unsigned long"
+.Ft "long"
 .Fn random void
 .Xc
 .It Xo

stand/libsa/random.c

@@ -34,12 +34,12 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/types.h>
 
-static u_long randseed = 1;
+static long randseed = 1;
 
 void
-srandom(seed)
-	u_long seed;
+srandom(unsigned int seed)
 {
+
 	randseed = seed;
 }
 
@@ -48,8 +48,8 @@ srandom(seed)
  * and whatever else we might use it for.  The result is uniform on
  * [0, 2^31 - 1].
  */
-u_long
-random()
+long
+random(void)
 {
 	long x, hi, lo, t;
 

stand/libsa/stand.h

@@ -281,7 +281,7 @@ extern ssize_t	read(int, void *, size_t);
 extern ssize_t	write(int, void *, size_t);
 extern struct	dirent *readdirfd(int);
 
-extern void	srandom(u_long seed);
+extern void	srandom(unsigned int);
 extern u_long	random(void);
     
 /* imports from stdlib, locally modified */