Shell: Use SkipParentAndBaseDir flag in DirIterator

Author: https://github.com/shannonbooth
Commit: https://github.com/SerenityOS/serenity/commit/20d9c431cea
Pull-request: https://github.com/SerenityOS/serenity/pull/1222

Shell/main.cpp

@@ -574,7 +574,7 @@ static Vector<String> expand_globs(const StringView& path, const StringView& bas
         StringView new_base_v = new_base;
         if (new_base_v.is_empty())
             new_base_v = ".";
-        Core::DirIterator di(new_base_v, Core::DirIterator::NoFlags);
+        Core::DirIterator di(new_base_v, Core::DirIterator::SkipParentAndBaseDir);
 
         if (di.has_error()) {
             return res;
@@ -587,10 +587,6 @@ static Vector<String> expand_globs(const StringView& path, const StringView& bas
             if (name[0] == '.' && part[0] != '.')
                 continue;
 
-            // And even if they are, skip . and ..
-            if (name == "." || name == "..")
-                continue;
-
             if (name.matches(part, String::CaseSensitivity::CaseSensitive)) {
 
                 StringBuilder nested_base;