[PATCH] trivial doc fix: remove weird phrase "syscall takes zero to five arguments"

[Askar Safin <safinaskar@zohomail.com>]

"number of arguments, from zero to five" is wrong, because on Linux maximal number
of arguments is 6, not 5. Also, maximal number of arguments is kernel-dependent,
so let's not include it here at all.

Moreover, "Each kind of system call has a definite number of arguments" is questionable.
Think about SYS_open on Linux, which takes 2 or 3 arguments. Or SYS_clone on Linux x86_64, which
takes 2 to 5 arguments. So I propose to fully remove this sentence.

Signed-off-by: Askar Safin <safinaskar@zohomail.com>
---

Again: yes, I give up pushing my "syscall_no_errno".
But while I was writing "syscall_no_errno" patch I noticed this manual error,
so I submit it.

 manual/startup.texi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/manual/startup.texi b/manual/startup.texi
index 9bf24123f5..96a7a472bb 100644
--- a/manual/startup.texi
+++ b/manual/startup.texi
@@ -727,8 +727,7 @@ identified by a number.  Macros for all the possible system call numbers
 are defined in @file{sys/syscall.h}
 
 The remaining arguments are the arguments for the system call, in
-order, and their meanings depend on the kind of system call.  Each kind
-of system call has a definite number of arguments, from zero to five.
+order, and their meanings depend on the kind of system call.
 If you code more arguments than the system call takes, the extra ones to
 the right are ignored.
 
-- 
2.43.0