bins: read user args from argv[1..]; fix date year digit

exec::spawn passes C-style argv with argv[0] = the command name, but
ls, cat, mkdir, touch and rm treated argv[0] as their first user
argument.  Every path they were given resolved to the literal command
name ("ls", "mkdir", ...), so they failed silently: `mkdir .../sub`
never created the directory, `cat` printed nothing.

date formatted its last year digit as `y as u8 % 10`, which truncates
before the modulo (2026 -> 234 -> '4'), printing "2024".

Only visible now that the system image actually stages /bin — before,
/bin was empty and every command fell back to a built-in.

1 files changed, 1 insertions, 1 deletions

diff --git a/bins/date/src/main.rs b/bins/date/src/main.rs
index 880833e..68e70d3 100644
--- a/bins/date/src/main.rs
+++ b/bins/date/src/main.rs
@@ -22,7 +22,7 @@ pub extern "C" fn efi_main(exports: &'static rsapi::Exports, _argc: usize, _argv
     let mut buf = [0u8; 19];
     let y = t.year;
     buf[0] = b'0' + (y / 1000) as u8; buf[1] = b'0' + (y / 100) as u8 % 10;
-    buf[2] = b'0' + (y / 10) as u8 % 10; buf[3] = b'0' + y as u8 % 10;
+    buf[2] = b'0' + (y / 10) as u8 % 10; buf[3] = b'0' + (y % 10) as u8;
     buf[4] = b'-';
     let m = dig(t.month); buf[5] = m[0]; buf[6] = m[1];
     buf[7] = b'-';