--- a/src/mono_util.sig	Mon Nov 10 22:07:51 2014 -0500
+++ b/src/mono_util.sig	Tue Nov 11 04:25:20 2014 -0500
@@ -16,7 +16,7 @@
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
@@ -68,7 +68,7 @@
     val fold : {typ : Mono.typ' * 'state -> 'state,
                 exp : Mono.exp' * 'state -> 'state}
                -> 'state -> Mono.exp -> 'state
-                                        
+
     val exists : {typ : Mono.typ' -> bool,
                   exp : Mono.exp' -> bool} -> Mono.exp -> bool