code review 5675095: cmd/dist: fix pprof permissions

src/cmd/dist/a.h

 // Copyright 2012 The Go Authors.  All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 typedef int bool;
 
 // The Time unit is unspecified; we just need to
 // be able to compare whether t1 is older than t2 with t1 < t2.
 typedef long long Time;
 
@@ skipping 87 matching lines @@
 
 // goc2c.c
 void    goc2c(char*, char*);
 
 // main.c
 extern int vflag;
 void    usage(void);
 void    xmain(int argc, char **argv);
 
 // portability layer (plan9.c, unix.c, windows.c)
-int     chmod(const char *, unsigned int);
 bool    contains(char *p, char *sep);
 void    fatal(char *msg, ...);
 bool    hasprefix(char *p, char *prefix);
 bool    hassuffix(char *p, char *suffix);
 bool    isabs(char*);
 bool    isdir(char *p);
 bool    isfile(char *p);
 char*   lastelem(char*);
 Time    mtime(char*);
 void    readfile(Buf*, char*);
 void    run(Buf *b, char *dir, int mode, char *cmd, ...);
 void    runv(Buf *b, char *dir, int mode, Vec *argv);
 void    bgrunv(char *dir, int mode, Vec *argv);
 void    bgwait(void);
 bool    streq(char*, char*);
-void    writefile(Buf*, char*);
+void    writefile(Buf*, char*, int);
 void    xatexit(void (*f)(void));
 void    xexit(int);
 void    xfree(void*);
 void    xgetenv(Buf *b, char *name);
 void    xgetwd(Buf *b);
 void*   xmalloc(int n);
 void*   xmalloc(int);
 int     xmemcmp(void*, void*, int);
 void    xmemmove(void*, void*, int);
 void    xmkdir(char *p);
 void    xmkdirall(char*);
 Time    xmtime(char *p);
 void    xprintf(char*, ...);
 void    xqsort(void*, int, int, int(*)(const void*, const void*));
 void    xreaddir(Vec *dst, char *dir);
 void*   xrealloc(void*, int);
 void    xrealwd(Buf *b, char *path);
 void    xremove(char *p);
 void    xremoveall(char *p);
 void    xsetenv(char*, char*);
 int     xstrcmp(char*, char*);
 char*   xstrdup(char *p);
 int     xstrlen(char*);
 char*   xstrrchr(char*, int);
 char*   xstrstr(char*, char*);
 char*   xworkdir(void);