catch exceptions as const

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: If6aba71f482f75143e6d669763b8853db22318cf
diff --git a/power-supply/record_manager.cpp b/power-supply/record_manager.cpp
index 53e8fe3..a182c8c 100644
--- a/power-supply/record_manager.cpp
+++ b/power-supply/record_manager.cpp
@@ -88,7 +88,7 @@
             records.pop_back();
         }
     }
-    catch (InvalidRecordException& e)
+    catch (const InvalidRecordException& e)
     {
         return false;
     }