Add --enable-nanorc to version string in nano.c

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@599 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

nano.c

@@ -449,6 +449,9 @@ void version(void)
 #ifdef NANO_EXTRA
     printf(" --enable-extra");
 #endif
+#ifdef ENABLE_NANORC
+    printf(" --enable-nanorc");
+#endif
 
 #ifdef NANO_SMALL
     printf(" --enable-tiny");