removed verbosity in correct_event script and fixed Warning msg in EventStream save() method

Author: paudetseis

.gitignore

@@ -15,4 +15,5 @@ build
 dist
 
 _build
-TODO
+TODO
+atacr_download_data_xml.py

obstools/atacr/classes.py

@@ -2095,7 +2095,7 @@ def save(self, filename):
 
         """
 
-        if hasattr(self, 'correct'):
+        if not hasattr(self, 'correct'):
             print("Warning: saving EventStream object before having done " +
                   "the corrections")