catch exceptions as const

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ic2b49715c7b81ac5bcfc12ff2d3b4c593cd95ce7
diff --git a/ipmi_fru_info_area.cpp b/ipmi_fru_info_area.cpp
index ca06f5b..155e88b 100644
--- a/ipmi_fru_info_area.cpp
+++ b/ipmi_fru_info_area.cpp
@@ -141,7 +141,7 @@
         {
             chassisType = std::stoi(value);
         }
-        catch (std::exception& e)
+        catch (const std::exception& e)
         {
             log<level::ERR>("Could not parse chassis type",
                             entry("VALUE=%s", value.c_str()),