Fix up failing tests.

tests/test-notfound.out

@@ -1,6 +1,6 b''
 Is there an error message when trying to diff non-existing files?
-not: No such file or directory
 found: No such file or directory
-Is there an error message when trying to add non-existing files?
 not: No such file or directory
+Is there an error message when trying to add non-existing files?
 found: No such file or directory
+not: No such file or directory

tests/test-walk.out

@@ -1,55 +1,55 b''
-adding fennel
-adding fenugreek
-adding fiddlehead
-adding glob:glob
 adding beans/black
 adding beans/borlotti
 adding beans/kidney
 adding beans/navy
 adding beans/pinto
 adding beans/turtle
-adding mammals/skunk
+adding fennel
+adding fenugreek
+adding fiddlehead
+adding glob:glob
 adding mammals/Procyonidae/cacomistle
 adding mammals/Procyonidae/coatimundi
 adding mammals/Procyonidae/raccoon
-f  fennel                          fennel                          
-f  fenugreek                       fenugreek                       
-f  fiddlehead                      fiddlehead                      
-f  glob:glob                       glob:glob                       
+adding mammals/skunk
 f  beans/black                     beans/black                     
 f  beans/borlotti                  beans/borlotti                  
 f  beans/kidney                    beans/kidney                    
 f  beans/navy                      beans/navy                      
 f  beans/pinto                     beans/pinto                     
 f  beans/turtle                    beans/turtle                    
-f  mammals/skunk                   mammals/skunk                   
+f  fennel                          fennel                          
+f  fenugreek                       fenugreek                       
+f  fiddlehead                      fiddlehead                      
+f  glob:glob                       glob:glob                       
 f  mammals/Procyonidae/cacomistle  mammals/Procyonidae/cacomistle  
 f  mammals/Procyonidae/coatimundi  mammals/Procyonidae/coatimundi  
 f  mammals/Procyonidae/raccoon     mammals/Procyonidae/raccoon     
-f  mammals/skunk                   skunk                   
+f  mammals/skunk                   mammals/skunk                   
 f  mammals/Procyonidae/cacomistle  Procyonidae/cacomistle  
 f  mammals/Procyonidae/coatimundi  Procyonidae/coatimundi  
 f  mammals/Procyonidae/raccoon     Procyonidae/raccoon     
+f  mammals/skunk                   skunk                   
 f  mammals/Procyonidae/cacomistle  Procyonidae/cacomistle  
 f  mammals/Procyonidae/coatimundi  Procyonidae/coatimundi  
 f  mammals/Procyonidae/raccoon     Procyonidae/raccoon     
 f  mammals/Procyonidae/cacomistle  cacomistle  
 f  mammals/Procyonidae/coatimundi  coatimundi  
 f  mammals/Procyonidae/raccoon     raccoon     
-f  mammals/skunk                   ../skunk    
 f  mammals/Procyonidae/cacomistle  cacomistle  
 f  mammals/Procyonidae/coatimundi  coatimundi  
 f  mammals/Procyonidae/raccoon     raccoon     
+f  mammals/skunk                   ../skunk    
 f  beans/black     ../beans/black     
 f  beans/borlotti  ../beans/borlotti  
 f  beans/kidney    ../beans/kidney    
 f  beans/navy      ../beans/navy      
 f  beans/pinto     ../beans/pinto     
 f  beans/turtle    ../beans/turtle    
-f  mammals/skunk                   skunk                   
 f  mammals/Procyonidae/cacomistle  Procyonidae/cacomistle  
 f  mammals/Procyonidae/coatimundi  Procyonidae/coatimundi  
 f  mammals/Procyonidae/raccoon     Procyonidae/raccoon     
+f  mammals/skunk                   skunk                   
 f  beans/black     beans/black     
 f  beans/borlotti  beans/borlotti  
 f  beans/kidney    beans/kidney    
@@ -59,19 +59,19 b' f beans/turtle beans/turtle'
 f  beans/black     beans/black     
 f  beans/borlotti  beans/borlotti  
 f  mammals/skunk  mammals/skunk  
-f  mammals/skunk                   mammals/skunk                   
 f  mammals/Procyonidae/cacomistle  mammals/Procyonidae/cacomistle  
 f  mammals/Procyonidae/coatimundi  mammals/Procyonidae/coatimundi  
 f  mammals/Procyonidae/raccoon     mammals/Procyonidae/raccoon     
+f  mammals/skunk                   mammals/skunk                   
 abort: .. not under root
 abort: beans/../.. not under root
 f  fennel      fennel      
 f  fenugreek   fenugreek   
 f  fiddlehead  fiddlehead  
 f  glob:glob   glob:glob   
+f  beans/black    beans/black    
 f  fenugreek      fenugreek      
 f  glob:glob      glob:glob      
-f  beans/black    beans/black    
 f  mammals/skunk  mammals/skunk  
 f  beans/black  beans/black  
 f  beans/black     beans/black