Fix Björn's name in ACKS.
diff --git a/Misc/ACKS b/Misc/ACKS
index a1a42a5..dc0a634 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -494,7 +494,7 @@
 Martin Ligr
 Grant Limberg
 Christopher Lindblad
-Bjorn Lindqvist
+Björn Lindqvist
 Per Lindqvist
 Eric Lindvall
 Gregor Lingl