diff --git a/collects/htdch/installer.scm b/collects/htdch/installer.scm
index 415917dca4..4c30c0e401 100644
--- a/collects/htdch/installer.scm
+++ b/collects/htdch/installer.scm
@@ -14,4 +14,4 @@
     (idraw:installer plthome)
     (graph:installer plthome))
 
-  )
\ No newline at end of file
+  )
diff --git a/collects/scribblings/guide/contracts-examples/1-test.ss b/collects/scribblings/guide/contracts-examples/1-test.ss
index 36b3c32ec0..383d66326d 100644
--- a/collects/scribblings/guide/contracts-examples/1-test.ss
+++ b/collects/scribblings/guide/contracts-examples/1-test.ss
@@ -16,4 +16,3 @@
   (test-true "active?" (active? 'mf))
   (test-false "active? 2" (active? 'kk))
   (test-true "set name" (void? (set-name 'mf "matt")))))
-
diff --git a/collects/scribblings/guide/contracts-examples/1b.ss b/collects/scribblings/guide/contracts-examples/1b.ss
index d95b351260..805d8549e0 100644
--- a/collects/scribblings/guide/contracts-examples/1b.ss
+++ b/collects/scribblings/guide/contracts-examples/1b.ss
@@ -2,12 +2,12 @@
 
 (require "1.ss") ;; the module just above
 
-;; implementation 
+;; implementation
 ;; [listof (list basic-customer? secret-info)]
 (define all '())
 
-(define (find c) 
-  (define (has-c-as-key p) 
+(define (find c)
+  (define (has-c-as-key p)
     (id-equal? (basic-customer-id (car p)) c))
   (define x (filter has-c-as-key all))
   (if (pair? x) (car x) x))
@@ -33,27 +33,27 @@
   (set-basic-customer-name! (car bc-with-id) name))
 
 (define c0 0)
-;; end of implementation 
+;; end of implementation
 
 (provide/contract
- ;; how many customers are in the db?  
+ ;; how many customers are in the db?
  [count    natural-number/c]
- ;; is the customer with this id active? 
+ ;; is the customer with this id active?
  [active?  (-> id? boolean?)]
- ;; what is the name of the customer with this id? 
+ ;; what is the name of the customer with this id?
  [name     (-> (and/c id? active?) string?)]
- ;; change the name of the customer with this id 
+ ;; change the name of the customer with this id
  [set-name (->d ([id id?] [nn string?])
                 ()
-                [result any/c] ;; result contract 
+                [result any/c] ;; result contract
                 #:post-cond
                 (string=? (name id) nn))]
- 
+
  [add      (->d ([bc (and/c basic-customer? not-active?)])
                 ()
-                ;; A pre-post condition contract must use 
+                ;; A pre-post condition contract must use
                 ;; a side-effect to express this contract
                 ;; via post-conditions
                 #:pre-cond (set! c0 count)
-                [result any/c] ;; result contract 
+                [result any/c] ;; result contract
                 #:post-cond (> count c0))])
diff --git a/collects/scribblings/guide/contracts-examples/2-test.ss b/collects/scribblings/guide/contracts-examples/2-test.ss
index f90e7b2e3e..7ee93bf5f8 100644
--- a/collects/scribblings/guide/contracts-examples/2-test.ss
+++ b/collects/scribblings/guide/contracts-examples/2-test.ss
@@ -7,10 +7,10 @@
 (define s2 (push (push s0 2) 1))
 
 (test/text-ui
- (test-suite 
+ (test-suite
   "stack"
-  (test-true 
-   "empty" 
+  (test-true
+   "empty"
    (is-empty? (initialize (flat-contract integer?) =)))
   (test-true "push" (stack? s2))
   (test-true
diff --git a/collects/scribblings/guide/contracts-examples/3-test.ss b/collects/scribblings/guide/contracts-examples/3-test.ss
index 93ec0e3a63..d7b5443c8b 100644
--- a/collects/scribblings/guide/contracts-examples/3-test.ss
+++ b/collects/scribblings/guide/contracts-examples/3-test.ss
@@ -7,7 +7,7 @@
 (define d (put (put (put d0 'a 2) 'b 2) 'c 1))
 
 (test/text-ui
- (test-suite 
+ (test-suite
   "dictionaries"
   (test-equal? "value for" 2 (value-for d 'b))
   (test-false "has?" (has? (rem d 'b) 'b))
diff --git a/collects/scribblings/guide/contracts-examples/5-test.ss b/collects/scribblings/guide/contracts-examples/5-test.ss
index 7ee28094d5..09cb868365 100644
--- a/collects/scribblings/guide/contracts-examples/5-test.ss
+++ b/collects/scribblings/guide/contracts-examples/5-test.ss
@@ -6,9 +6,9 @@
 (define s (put (put (initialize (flat-contract integer?) =) 2) 1))
 
 (test/text-ui
- (test-suite 
+ (test-suite
   "queue"
-  (test-true 
+  (test-true
    "empty"
    (is-empty? (initialize (flat-contract integer?) =)))
   (test-true "put" (queue? s))