Fix code styling for return statements
diff --git a/library/entropy.c b/library/entropy.c
index 0560c39..068a501 100644
--- a/library/entropy.c
+++ b/library/entropy.c
@@ -175,7 +175,7 @@
         return( POLARSSL_ERR_THREADING_MUTEX_ERROR );
 #endif
 
-    return ( ret );
+    return( ret );
 }
 
 /*