Merge pull request #766 from crytic/dev-inheritance-graph

Hot fix inheritance graph filename

slither/printers/inheritance/inheritance_graph.py

@@ -189,9 +189,8 @@ class PrinterInheritanceGraph(AbstractPrinter):
         Args:
             filename(string)
         """
-
+        if filename in ("", "."):
-        if filename == "":
+            filename = "inheritance-graph.dot"
-            filename = "contracts.dot"
         if not filename.endswith(".dot"):
             filename += ".inheritance-graph.dot"
         info = "Inheritance Graph: " + filename + "\n"