remove exclamation mark from string-program

str-program/Cargo.toml

@@ -0,0 +1,4 @@
+[package]
+name = "str-program"
+version = "0.1.0"
+edition = "2021"

str-program/src/main.rs

@@ -0,0 +1,13 @@
+const NAME: &str = "asqar";
+
+fn hello() -> u8 {
+    let hello = NAME;
+    println!("hello {}", hello);
+    0
+}
+
+fn main() {
+    for _ in 1..5 {
+        let v = hello();
+    }
+}