Load fixes

extra/contributors/contributors.factor

@@ -5,8 +5,9 @@ sequences sequences.lib assocs system sorting math.parser ;
 IN: contributors
 
 : changelog ( -- authors )
-    image parent-directory cd
-    "git-log --pretty=format:%an" <process-stream> lines ;
+    image parent-directory [
+        "git-log --pretty=format:%an" <process-stream> lines
+    ] with-directory ;
 
 : patch-counts ( authors -- assoc )
     dup prune

extra/delegate/protocols/protocols.factor

@@ -21,5 +21,5 @@ PROTOCOL: stream-protocol
     make-cell-stream stream-write-table ;
 
 PROTOCOL: definition-protocol
-    where set-where forget uses redefined*
+    where set-where forget uses
     synopsis* definer definition ;

extra/pack/pack.factor

@@ -1,8 +1,7 @@
 USING: alien alien.c-types arrays assocs byte-arrays inference
-inference.transforms io io.binary io.streams.string kernel
-math math.parser namespaces parser prettyprint
-quotations sequences strings vectors
-words macros math.functions ;
+inference.transforms io io.binary io.streams.string kernel math
+math.parser namespaces parser prettyprint quotations sequences
+strings vectors words macros math.functions math.bitfields.lib ;
 IN: pack
 
 SYMBOL: big-endian