clippy::len_zero

warning: length comparison to zero
   --> src/cmd/sqlp.rs:505:25
    |
505 |             .filter(|s| s.trim().len() > 0)
    |                         ^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!s.trim().is_empty()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
    = note: `#[warn(clippy::len_zero)]` on by default

src/cmd/sqlp.rs

@@ -502,7 +502,7 @@ pub fn run(argv: &[&str]) -> CliResult<()> {
         sql_script
             .split(';')
             .map(std::string::ToString::to_string)
-            .filter(|s| s.trim().len() > 0)
+            .filter(|s| !s.trim().is_empty())
             .collect()
     } else {
         // its not a sql script, just a single query

src/main.rs

@@ -25,8 +25,6 @@
         clippy::unnecessary_wraps,
         // false positive
         clippy::needless_doctest_main,
-        // performance
-        clippy::len_zero,
         // noisy
         clippy::missing_errors_doc,
         clippy::must_use_candidate,