src/create_hooks.rs: update hooks shebang

src/create_hooks.rs

@@ -107,7 +107,7 @@ pub fn create_hooks(compression: &str, mode: &str) {
     let file_name = vec!["post-commit", "post-checkout"];
     for (c_cmd, fname) in v.iter().zip(file_name.iter()) {
         let content = format!(
-            "#!/bin/sh \n\
+            "#!/bin/bash \n\
         \n\
         {}
         \n\