syscall: document that Exec wraps execve(2)

Change-Id: I611511434f37c75f77c22f61f469108243bc0101
Reviewed-on: https://go-review.googlesource.com/29121
Reviewed-by: Russ Cox <rsc@golang.org>

diff --git a/src/syscall/exec_unix.go b/src/syscall/exec_unix.go
index 9fd8cf4dba7a76378973687574a3daa379d86a90..af59c5d00a8448ca503aef026a2891a95c6d1640 100644 (file)
--- a/src/syscall/exec_unix.go
+++ b/src/syscall/exec_unix.go
@@ -241,7 +241,7 @@ func StartProcess(argv0 string, argv []string, attr *ProcAttr) (pid int, handle
        return pid, 0, err
 }
 
-// Ordinary exec.
+// Exec invokes the execve(2) system call.
 func Exec(argv0 string, argv []string, envv []string) (err error) {
        argv0p, err := BytePtrFromString(argv0)
        if err != nil {