Rollup merge of #64504 - guanqun:use-println-without-empty-str, r=jonas-schievink

use println!() instead of println!("")

The empty string is unnecessary.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstd/process.rs b/src/libstd/process.rs
index c50025ab7d1..b8d57cfafea 100644
--- a/src/libstd/process.rs
+++ b/src/libstd/process.rs
@@ -422,7 +422,7 @@ impl fmt::Debug for ChildStderr {
 /// // Execute `ls` in the current directory of the program.
 /// list_dir.status().expect("process failed to execute");
 ///
-/// println!("");
+/// println!();
 ///
 /// // Change `ls` to execute in the root directory.
 /// list_dir.current_dir("/");