diff --git a/src/FileMutex.php b/src/FileMutex.php
index 3d40717..6c2a280 100644
--- a/src/FileMutex.php
+++ b/src/FileMutex.php
@@ -10,10 +10,10 @@ use function Amp\delay;
 
 /**
  * Async mutex based on files.
- * 
- * A crash of the program will NOT release the lock, manual user action will be required to remove the lockfile.  
- * 
- * For a mutex that will automatically release the lock in case of a crash, see LockingFileMutex.  
+ *
+ * A crash of the program will NOT release the lock, manual user action will be required to remove the lockfile.
+ *
+ * For a mutex that will automatically release the lock in case of a crash, see LockingFileMutex.
  */
 final class FileMutex implements Mutex
 {
diff --git a/src/KeyedFileMutex.php b/src/KeyedFileMutex.php
index ce6b7a6..8e82d51 100644
--- a/src/KeyedFileMutex.php
+++ b/src/KeyedFileMutex.php
@@ -7,12 +7,13 @@ use Amp\Sync\KeyedMutex;
 use Amp\Sync\Lock;
 use Amp\Sync\SyncException;
 use function Amp\delay;
+
 /**
  * Asynckeyed  mutex based on files.
- * 
- * A crash of the program will NOT release the lock, manual user action will be required to remove the lockfile.  
- * 
- * For a mutex that will automatically release the lock in case of a crash, see KeyedLockingFileMutex.  
+ *
+ * A crash of the program will NOT release the lock, manual user action will be required to remove the lockfile.
+ *
+ * For a mutex that will automatically release the lock in case of a crash, see KeyedLockingFileMutex.
  */
 final class KeyedFileMutex implements KeyedMutex
 {
diff --git a/src/KeyedLockingFileMutex.php b/src/KeyedLockingFileMutex.php
index e50e3e2..33a692f 100644
--- a/src/KeyedLockingFileMutex.php
+++ b/src/KeyedLockingFileMutex.php
@@ -7,11 +7,12 @@ use Amp\Sync\KeyedMutex;
 use Amp\Sync\Lock;
 use Amp\Sync\SyncException;
 use function Amp\delay;
+
 /**
  * Async keyed mutex based on flock.
- * 
- * A crash of the program will automatically release the lock, but the lockfiles will never be removed from the filesystem (even in case of successful release).  
- * 
+ *
+ * A crash of the program will automatically release the lock, but the lockfiles will never be removed from the filesystem (even in case of successful release).
+ *
  * For a mutex that removes the lockfiles but does not release the lock in case of a crash (requiring manual user action to clean up), see KeyedFileMutex.
  */
 
diff --git a/src/LockingFileMutex.php b/src/LockingFileMutex.php
index c86c1df..0384c7a 100644
--- a/src/LockingFileMutex.php
+++ b/src/LockingFileMutex.php
@@ -10,9 +10,9 @@ use function Amp\delay;
 
 /**
  * Async mutex based on flock.
- * 
- * A crash of the program will automatically release the lock, but the lockfiles will never be removed from the filesystem (even in case of successful release).  
- * 
+ *
+ * A crash of the program will automatically release the lock, but the lockfiles will never be removed from the filesystem (even in case of successful release).
+ *
  * For a mutex that removes the lockfiles but does not release the lock in case of a crash (requiring manual user action to clean up), see FileMutex.
  */
 final class LockingFileMutex implements Mutex