Bugfix: mismatch in Fortran array character array lengths in example 2 (#263)

* Bugfix: mismatch in Fortran array character array lengths in example 2 causing the wrong resnet category to be printed.

* Update filename strings to len=128 in example 2 for consistency.

Author: jatkinson1000

examples/2_ResNet18/resnet_infer_fortran.f90

@@ -40,9 +40,9 @@ subroutine main()
       ! Path to input data
       character(len=128) :: data_dir
       ! Binary file containing input tensor
-      character(len=116) :: filename
+      character(len=128) :: filename
       ! Text file containing categories
-      character(len=114) :: filename_cats
+      character(len=128) :: filename_cats
 
       ! Length of tensor and number of categories
       integer, parameter :: tensor_length = 150528
@@ -161,7 +161,7 @@ subroutine load_categories(filename_cats, N_cats, categories)
 
       character(len=*), intent(in) :: filename_cats
       integer, intent(in) :: N_cats
-      character(len=100), intent(out) :: categories(N_cats)
+      character(len=128), intent(out) :: categories(N_cats)
 
       integer :: ios
       character(len=100) :: ioerrmsg