syntactic changes: remove unneeded parentheses

cli/app.rs

@@ -135,7 +135,7 @@ pub enum Command {
 
 impl Command {
     fn min_args(&self) -> usize {
-        (match self {
+        1 + match self {
             Self::Quit
             | Self::Schema
             | Self::Help
@@ -150,7 +150,7 @@ impl Command {
             | Self::NullValue
             | Self::LoadExtension => 1,
             Self::Import => 2,
-        } + 1) // argv0
+        } // argv0
     }
 
     fn usage(&self) -> &str {