Apply suggestions from code review

Co-authored-by: Jeremie Vandenplas <jeremie.vandenplas@gmail.com>

Author: 0382

example/sorting/example_radix_sort.f90

@@ -23,16 +23,7 @@ program example_radix_sort
 
     allocate (arrf64(10))
     x = 0.0 ! divide zero will arise compile error
-    arrf64(1) = 1.0/x
-    arrf64(2) = 0.0
-    arrf64(3) = 0.0/x
-    arrf64(4) = -1.0/x
-    arrf64(5) = -0.0
-    arrf64(6) = 1.0
-    arrf64(7) = -1.0
-    arrf64(8) = 3.45
-    arrf64(9) = -3.14
-    arrf64(10) = 3.44
+    arrf64 = [1.0/x, 0.0, 0.0/x, -1.0/x, -0.0, 1.0, -1.0, 3.45, -3.14, 3.44]
     call radix_sort(arrf64)
     print *, arrf64
     ! In my computer, it gives

test/sorting/test_sorting.f90

@@ -529,7 +529,7 @@ subroutine test_int_radix_sort( a, a_name, ltest )
         end if
         write( lun, '("|     Integer |", 1x, i7, 2x, "|", 1x, a15, " |", ' // &
             'a12, " |",  F10.6, " |" )' ) &
-            test_size, a_name, "Sort", tdiff/rate
+            test_size, a_name, "Radix_sort", tdiff/rate
 
         ! reverse
         dummy = a