Merge pull request #4172 from tomate44/fcinfo

fcinfo: support backup files

src/Tools/fcinfo

@@ -213,7 +213,8 @@ if __name__ == '__main__':
         print(__doc__)
         sys.exit()
 
-    if not sys.argv[-1].lower().endswith(".fcstd"):
+    ext = sys.argv[-1].rsplit(".")[-1].lower()
+    if not ext.startswith("fcstd") and not ext.startswith("fcbak"):
         print(__doc__)
         sys.exit()