fix process waiting things

Cargo.lock

@@ -22,7 +22,7 @@ checksum = "b03f7fbd470aa8b3ad163c85cce8bccfc11cc9c44ef12da0a4eddd98bd307352"
 
 [[package]]
 name = "spl"
-version = "0.1.6"
+version = "0.1.8"
 dependencies = [
  "multicall",
  "once_cell",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "spl"
-version = "0.1.7"
+version = "0.1.8"
 edition = "2021"
 description = "Stack Pogramming Language: A simple, concise scripting language."
 license = "MIT"

src/main.rs

@@ -35,8 +35,9 @@ fn main() {
         } else {
             let mut args: Vec<String> = args.collect();
             args.insert(0, file);
-            app.execute(args).unwrap();
+            let mut command = app.execute(args).unwrap();
             app.delete();
+            command.wait().unwrap();
         }
 
         return;