-Werror,-Wunused-exception-parameter

Change-Id: Ia5b7f7629a07b84b4e8042aa7f8778faa4a11b50

shell/source/unix/exec/shellexec.cxx

@@ -105,7 +105,7 @@ ShellExec::ShellExec( const Reference< XComponentContext >& xContext ) :
                 m_aDesktopEnvironment = OUStringToOString(aDesktopEnvironment, RTL_TEXTENCODING_ASCII_US);
             }
         }
-    } catch (const RuntimeException &e) {
+    } catch (const RuntimeException &) {
     }
 }