Changes to t/ack-s.yaml. All files

t/ack-s.yaml

new file mode 100644@@ -0,0 +1,14 @@+---+name: Errors without -s+args: search-term non-existent-file.txt+exitcode: 1+stdout:+stderr: |+  ack: non-existent-file.txt: No such file or directory++---+name: Errors with -s+args: -s search-term non-existent-file.txt+exitcode: 1+stdout:+stderr: