Update 11_locks.md (#94)

Suggest removing an extra semicolon.

book/src/05_ticket_v2/04_if_let.md

@@ -8,7 +8,7 @@ impl Ticket {
         match &self.status {
             Status::InProgress { assigned_to } => assigned_to,
             Status::Done | Status::ToDo => {
-                panic!("Only `In-Progress` tickets can be assigned to someone"),
+                panic!("Only `In-Progress` tickets can be assigned to someone")
             }
         }
     }

book/src/07_threads/11_locks.md

@@ -99,7 +99,7 @@ fn main() {
     let guard = lock.lock().unwrap();
 
     spawn(move || {
-        receiver.recv().unwrap();;
+        receiver.recv().unwrap();
     });
 
     // Try to send the guard over the channel
@@ -118,7 +118,7 @@ error[E0277]: `MutexGuard<'_, i32>` cannot be sent between threads safely
     |  _-----_^
     | | |
     | | required by a bound introduced by this call
-11  | |     receiver.recv().unwrap();;
+11  | |     receiver.recv().unwrap();
 12  | | });
     | |_^ `MutexGuard<'_, i32>` cannot be sent between threads safely
     |

exercises/04_traits/14_outro/tests/integration.rs

@@ -6,11 +6,12 @@ fn test_saturating_u16() {
     let b: SaturatingU16 = 5u8.into();
     let c: SaturatingU16 = u16::MAX.into();
     let d: SaturatingU16 = (&1u16).into();
+    let e = &c;
 
     assert_eq!(a + b, SaturatingU16::from(15u16));
     assert_eq!(a + c, SaturatingU16::from(u16::MAX));
     assert_eq!(a + d, SaturatingU16::from(11u16));
     assert_eq!(a + a, 20u16);
     assert_eq!(a + 5u16, 15u16);
-    assert_eq!(a + &u16::MAX, SaturatingU16::from(u16::MAX));
+    assert_eq!(a + e, SaturatingU16::from(u16::MAX));
 }

exercises/06_ticket_management/11_mutable_slices/src/lib.rs

@@ -1,6 +1,6 @@
 // TODO: Define a function named `lowercase` that converts all characters in a string to lowercase,
 //  modifying the input in place.
-//  Does it need to take a `&mut String`? Does a `&mut [str]` work? Why or why not?
+//  Does it need to take a `&mut String`? Does a `&mut str` work? Why or why not?
 
 #[cfg(test)]
 mod tests {