Ran rustfmt on lib.rs of task2

hw2/task2/src/lib.rs

     let mut count = 0;
     for c in conf.line.chars() {
         if c == conf.search {
-        count = count + 1;
+            count = count + 1;
         }
-    }   
+    }
     count
-  }
+}
 
 
 impl Config {