Fixed a couple of warning regressions

include/internal/catch_run_context.hpp

@@ -319,6 +319,7 @@ namespace Catch {
         static void invokeTestCase( TestCase const& testCase ) {
             FatalConditionHandler fatalConditionHandler; // Handle signals
             testCase.invoke();
+            fatalConditionHandler.reset(); // Not strictly needed but avoids warnings
         }
 
     private:

include/internal/catch_tostring.hpp

@@ -61,7 +61,6 @@ std::string toString( std::string const& value ) {
             std::string subs;
             switch( s[i] ) {
             case '\r': subs = "\\r"; break;
-            case '\l': subs = "\\l"; break;
             case '\n': subs = "\\n"; break;
             case '\t': subs = "\\t"; break;
             default: break;