[test/misc] Search/replace of:

std::exception& e

to:

  const std::exception& e

test/misc/static_key.cpp

@@ -30,7 +30,7 @@ int main(int /*argc*/, char* /*argv*/[])
     std::string rend = sk.render();
     std::cout << rend;
   }
-  catch (std::exception& e)
+  catch (const std::exception& e)
     {
       std::cerr << "Exception: " << e.what() << std::endl;
       return 1;

test/misc/time.cpp

@@ -32,7 +32,7 @@ int main()
 	  }
       }
   }
-  catch (std::exception& e)
+  catch (const std::exception& e)
     {
       std::cerr << "Exception: " << e.what() << std::endl;
       return 1;

test/misc/timeaddsub.cpp

@@ -80,7 +80,7 @@ int main()
       add(inf, inf);
     }
   }
-  catch (std::exception& e)
+  catch (const std::exception& e)
     {
       std::cerr << "Exception: " << e.what() << std::endl;
       return 1;