Catch possible boost::bad_any_cast exception

apps/niftest/niftest.cpp

@@ -102,14 +102,6 @@ bool parseOptions (int argc, char** argv, std::vector<std::string>& files)
         bpo::parsed_options valid_opts = bpo::command_line_parser(argc, argv).
             options(desc).positional(p).run();
         bpo::store(valid_opts, variables);
-    }
-    catch(std::exception &e)
-    {
-        std::cout << "ERROR parsing arguments: " << e.what() << "\n\n"
-            << desc << std::endl;
-        return false;
-    }
-
         bpo::notify(variables);
         if (variables.count ("help"))
         {
@@ -121,6 +113,13 @@ bool parseOptions (int argc, char** argv, std::vector<std::string>& files)
             files = variables["input-file"].as< std::vector<std::string> >();
             return true;
         }
+    }
+    catch(std::exception &e)
+    {
+        std::cout << "ERROR parsing arguments: " << e.what() << "\n\n"
+            << desc << std::endl;
+        return false;
+    }
 
     std::cout << "No input files or directories specified!" << std::endl;
     std::cout << desc << std::endl;