linkers: Fix lld detection

This was actually probing bfd without always_args passed.

Fixes: #10763

mesonbuild/linkers/linkers.py

@@ -869,7 +869,7 @@ class LLVMDynamicLinker(GnuLikeDynamicLinkerMixin, PosixDynamicLinkerMixin, Dyna
         super().__init__(exelist, for_machine, prefix_arg, always_args, version=version)
 
         # Some targets don't seem to support this argument (windows, wasm, ...)
-        _, _, e = mesonlib.Popen_safe(self.exelist + self._apply_prefix('--allow-shlib-undefined'))
+        _, _, e = mesonlib.Popen_safe(self.exelist + always_args + self._apply_prefix('--allow-shlib-undefined'))
         # Versions < 9 do not have a quoted argument
         self.has_allow_shlib_undefined = ('unknown argument: --allow-shlib-undefined' not in e) and ("unknown argument: '--allow-shlib-undefined'" not in e)