use stderr instead of stdout

Cargo.lock

@@ -841,7 +841,7 @@ dependencies = [
 
 [[package]]
 name = "pomc"
-version = "0.1.0"
+version = "1.1.0"
 dependencies = [
  "async-std",
  "clap",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pomc"
-version = "1.1.0"
+version = "1.1.1"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

src/main.rs

@@ -39,8 +39,8 @@ async fn main() {
         Ok(()) => std::process::exit(0),
         Err(e) =>  {
             match e { 
-                fdo::Error::ServiceUnknown(_) => println!("Error: Failed to find pomd dbus interface, is pomd running?"),
-                _ => println!("Error calling pomd command: {}", e)
+                fdo::Error::ServiceUnknown(_) => eprintln!("Error: Failed to find pomd dbus interface, is pomd running?"),
+                _ => eprintln!("Error calling pomd command: {}", e)
             }
             std::process::exit(1)
         }