[LLDB] Fix Python formatting

Author: yln

lldb/test/API/functionalities/asan/TestMemoryHistory.py

@@ -59,9 +59,7 @@ def check_traces(self, skip_line_numbers=False):
     # Set breakpoint: after free, but before bug
     def set_breakpoint(self, target):
         bkpt = target.BreakpointCreateByLocation("main.c", self.line_breakpoint)
-        self.assertGreater(
-            bkpt.GetNumLocations(), 0, "Set the breakpoint successfully"
-        )
+        self.assertGreater(bkpt.GetNumLocations(), 0, "Set the breakpoint successfully")
 
     def run_to_breakpoint(self, target):
         self.set_breakpoint(target)