cov: fix for Plan 9 build

R=golang-dev
CC=golang-dev, rsc
https://golang.org/cl/5374086

diff --git a/src/cmd/cov/main.c b/src/cmd/cov/main.c
index ecbabf371ecc7d617e9c59d267dc896ef1282c54..9496632c53244454fdc5c629ef7fcc8169780cab 100644 (file)
--- a/src/cmd/cov/main.c
+++ b/src/cmd/cov/main.c
@@ -7,10 +7,8 @@
  */
 
 #include <u.h>
-#include <time.h>
 #include <libc.h>
 #include <bio.h>
-#include <ctype.h>
 #include "tree.h"
 
 #include <ureg_amd64.h>
@@ -394,7 +392,7 @@ startprocess(char **argv)
                pid = getpid();
                if(ctlproc(pid, "hang") < 0)
                        sysfatal("ctlproc hang: %r");
-               execv(argv[0], argv);
+               exec(argv[0], argv);
                sysfatal("exec %s: %r", argv[0]);
        }
        if(ctlproc(pid, "attached") < 0 || ctlproc(pid, "waitstop") < 0)
@@ -454,7 +452,6 @@ main(int argc, char **argv)
 
        if(argc == 0) {
                *--argv = "6.out";
-               argc++;
        }
        fd = open(argv[0], OREAD);
        if(fd < 0)