question mark character can also be in glob patterns.

src/commands/ls.rs

@@ -10,7 +10,7 @@ impl WholeStreamCommand for LS {
     }
 
     fn signature(&self) -> Signature {
-        Signature::build("ls").optional("path", SyntaxType::Path)
+        Signature::build("ls").optional("path", SyntaxType::Pattern)
     }
 
     fn usage(&self) -> &str {

src/parser/parse/parser.rs

@@ -713,6 +713,7 @@ fn is_bare_char(c: char) -> bool {
         '=' => true,
         '~' => true,
         ':' => true,
+        '?' => true,
         _ => false,
     }
 }