accept .eml for restore-mbox. Fixes #313

gyb.py

@@ -2031,10 +2031,11 @@ def main(argv):
                 vault_label_map[fileid] = labels
               elem.clear()  # keep memory usage down on very large files
     # Look for and restore mbox files
+    mbox_extensions = ['mbx', 'mbox', 'eml']
     for path, subdirs, files in os.walk(options.local_folder):
       for filename in files:
-        if filename[-4:].lower() != '.mbx' and \
-          filename[-5:].lower() != '.mbox':
+        file_extension = filename.split('.')[-1]
+        if file_extension not in mbox_extensions:
           continue
         file_path = os.path.join(path, filename)
         print("\nRestoring from %s file %s..." % (humansize(file_path), file_path))