patch 8.1.0459: Test_executable fails when there is a dog in the system

Problem:    Test_executable fails when there is a dog in the system.
Solution:   Rename the dog. (Hirohito Higashi)

src/testdir/test_functions.vim

@@ -855,7 +855,7 @@ func Test_Executable()
     call assert_equal(0, executable('win.ini'))
   elseif has('unix')
     call assert_equal(1, executable('cat'))
-    call assert_equal(0, executable('dog'))
+    call assert_equal(0, executable('nodogshere'))
   endif
 endfunc
 

src/version.c

@@ -792,6 +792,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    459,
 /**/
     458,
 /**/