Merge pull request #2049 from DieBauer/patch-1

Update ch15-03-drop.md

src/ch15-03-drop.md

@@ -84,7 +84,7 @@ functionality. Disabling `drop` isn’t usually necessary; the whole point of th
 `Drop` trait is that it’s taken care of automatically. Occasionally, however,
 you might want to clean up a value early. One example is when using smart
 pointers that manage locks: you might want to force the `drop` method that
-releases the lock to run so other code in the same scope can acquire the lock.
+releases the lock so that other code in the same scope can acquire the lock.
 Rust doesn’t let you call the `Drop` trait’s `drop` method manually; instead
 you have to call the `std::mem::drop` function provided by the standard library
 if you want to force a value to be dropped before the end of its scope.