improve short description

* The short description used to say that until commit
  aac7d76047 from 2014. It appears that
  it was changed by mistake in that commit to something less readable.

* With the message "use -print0/-0" we were confused and introduced a
  bug in our code because we didn't understand what to do with the
  "-0".

* SC2011 (source
  c9e27c2470/src/ShellCheck/Analytics.hs (L591))
  uses that exact warning message, we copied it from there.

Signed-off-by: Bruce Ricard <bricard@vmware.com>

src/ShellCheck/Analytics.hs

@@ -562,7 +562,7 @@ checkPipePitfalls _ (T_Pipeline id _ commands) = do
                 hasParameter "print0",
                 hasParameter "printf"
               ]) $ warn (getId find) 2038
-                      "Use -print0/-0 or -exec + to allow for non-alphanumeric filenames."
+                      "Use 'find .. -print0 | xargs -0 ..' or 'find .. -exec .. +' to allow non-alphanumeric filenames."
 
     for ["ps", "grep"] $
         \(ps:grep:_) ->