Fix char **argv to char *argv[]

mknod.c

@@ -15,7 +15,7 @@ usage(void)
 }
 
 int
-main(int argc, char **argv)
+main(int argc, char *argv[])
 {
 	mode_t type, mode = 0644;
 	dev_t dev;

su.c

@@ -26,7 +26,7 @@ static int lflag = 0;
 static int pflag = 0;
 
 int
-main(int argc, char **argv)
+main(int argc, char *argv[])
 {
 	char *usr = "root", *pass, *cryptpass;
 	char * const *newargv;

switch_root.c

@@ -60,7 +60,7 @@ usage(void)
 }
 
 int
-main(int argc, char **argv)
+main(int argc, char *argv[])
 {
 	char *console = NULL;
 	dev_t curdev;

who.c

@@ -14,7 +14,7 @@ usage(void)
 }
 
 int
-main(int argc, char **argv)
+main(int argc, char *argv[])
 {
 	struct utmp usr;
 	FILE *ufp;