Spell checker: add an argument to pass file containing ignored patterns

tools/test/travis-ci/doxy-spellchecker/spell.sh

@@ -114,7 +114,9 @@ while read file; do
         echo "_________________________________"
     fi
 
-done < <(find "${1}" -type d -iname "*target*" -prune -o -name '*.h' -print)
+# ${1}: directory to check
+# ${2}: file containing a list of paths (regex) to exclude
+done < <(find "${1}" -type d -iname "*target*" -prune -o -name '*.h' -print | grep -v -f "${2}")
 
 echo "----------------------------------------------------------------------------------"
 echo "Total Errors Found: ${ERRORS}"