fix a missed C&P error in comment

add a missing piece needed for command line build



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.17-protocols-http2@1703269 13f79535-47bb-0310-9956-ffa450edef68

Makefile.win

@@ -230,7 +230,7 @@ _trynghttp2:
 !ENDIF
 
 !ELSE
-#     NOT EXIST("srclib\lua")
+#     NOT EXIST("srclib\nghttp2")
 
 _trynghttp2:
 	@echo -----
@@ -506,6 +506,11 @@ _build:
 	cd modules\http
 	 $(MAKE) $(MAKEOPT) -f mod_mime.mak        CFG="mod_mime - Win32 $(LONG)" RECURSE=0 $(CTARGET)
 	cd ..\..
+!IF EXIST("srclib\nghttp2")
+	cd modules\http2
+	 $(MAKE) $(MAKEOPT) -f mod_h2.mak         CFG="mod_h2 - Win32 $(LONG)" RECURSE=0 $(CTARGET)
+	cd ..\..
+!ENDIF
 	cd modules\loggers
 	 $(MAKE) $(MAKEOPT) -f mod_log_config.mak  CFG="mod_log_config - Win32 $(LONG)" RECURSE=0 $(CTARGET)
 	 $(MAKE) $(MAKEOPT) -f mod_log_debug.mak  CFG="mod_log_debug - Win32 $(LONG)" RECURSE=0 $(CTARGET)