fetchpost: clippy missing semicolon; short-circuit debug msg in hot…

… loop

warning: consider adding a `;` to the last statement for consistent formatting
   --> src/cmd/fetchpost.rs:621:13
    |
621 |             s.clone_into(&mut url)
    |             ^^^^^^^^^^^^^^^^^^^^^^ help: add a `;` here: `s.clone_into(&mut url);`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned
    = note: `-W clippy::semicolon-if-nothing-returned` implied by `-W clippy::pedantic`

src/cmd/fetchpost.rs

@@ -613,12 +613,14 @@ pub fn run(argv: &[&str]) -> CliResult<()> {
                 serde_json::Value::String(value_string),
             );
         }
-        debug!("{form_body_jsonmap:?}");
+        if log::log_enabled!(Debug) {
+            debug!("{form_body_jsonmap:?}");
+        }
 
         if literal_url_used {
             url = literal_url.clone();
         } else if let Ok(s) = std::str::from_utf8(&record[column_index]) {
-            s.clone_into(&mut url)
+            s.clone_into(&mut url);
         } else {
             url = String::new();
         }