improve catch_all stdin example

Author: DannyBen

examples/catch-all-stdin/src/root_command.sh

@@ -1,11 +1,8 @@
 inspect_args
 
-# Collect the catch_all
-files=( ${other_args[*]} )
-
 # Read contents of the provided file(s)
 content=""
-for file in "${files[@]}"; do
+for file in "${other_args[@]}"; do
   content+="$(cat "$file")"
   content+=$'\n'
 done