fixup! feat(Lib/os): chmod

Author: litlighilit

src/pylib/Lib/os_impl/posix_like/chkarg.nim

@@ -59,7 +59,7 @@ template gen_invalid(a, b; msg: string){.dirty.} =
   proc `a and b invalid`*(function_name: string, a; b): bool{.discardable.} =
     if `valid a`(a) and `valid b`(b):
       raise newException(ValueError, function_name & ": " & msg)
-    return true
+    return
   template `a and b invalid`*(a; b): untyped{.dirty.} =
     bind getProcName
     `a and b invalid`(getProcName(), a, b)

src/pylib/Lib/os_impl/posix_like/stat.nim

@@ -654,6 +654,8 @@ proc do_stat_impl(result: var Stat; function_name: string, path: string|int, dir
           doFstatat
       else:
         doFstatat
+  if res != 0:
+    raiseExcWithPath path
 
 template withSt(body): stat_result{.dirty.} =
   bind to_result, Stat