Make asynchronous via tokio

Change-Id: I3491f0394258f47f11227a455ac033077cbc5237
Reviewed-on: https://git.clicks.codes/c/Clicks/BYO/HttpServer/rust/+/259
Tested-by: Skyler Grey <minion@clicks.codes>
Reviewed-by: Samuel Shuert <coded@clicks.codes>
diff --git a/src/main.rs b/src/main.rs
index 6417f51..2a56fd6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -32,7 +32,7 @@
         } else {
             let mut splits = line.split(":");
             let key = splits.next().unwrap();
-            let value = splits.next().unwrap_or_default();
+            let value = splits.next().unwrap_or_default().trim();
             request.insert(key.to_owned(), value.to_owned());
         }