From John Ivar Haugland & Robert Osfield, fix for bug in VisualStudio where it adds an redundent '/n' on the end of the command line arguments for no reason.

src/osg/ArgumentParser.cpp

@@ -197,6 +197,16 @@ ArgumentParser::ArgumentParser(int* argc,char **argv):
         }
     }
 #endif
+
+#ifdef WIN32
+    // Remove linefeed from last argument if it exist
+    char* lastline = argc==0 ? 0 : _argv[*argc-1];
+    if (lastline)
+    {
+        int len = strlen(lastline);
+        if (len>0 && lastline[len-1] == '\n') lastline[len-1]= '\0';
+    }
+#endif
 }
 
 std::string ArgumentParser::getApplicationName() const