Change how vergen's variables are emitted

build.rs

@@ -1,15 +1,9 @@
 use std::env;
 
 #[cfg(feature = "version")]
-fn commit_hash() {
-    use vergen::{Config, ShaKind};
-
-    let mut config = Config::default();
-    *config.git_mut().sha_kind_mut() = ShaKind::Short;
-
-    if let Err(e) = vergen::vergen(config) {
-        eprintln!("{}", e);
-    }
+fn emit_variables() -> Result<(), Box<dyn std::error::Error>> {
+    vergen::EmitBuilder::builder().emit()?;
+    Ok(())
 }
 
 fn build_macos() {
@@ -28,5 +22,5 @@ fn main() {
     }
 
     #[cfg(feature = "version")]
-    commit_hash()
+    emit_variables();
 }