[libpeas/msvc] Update .gitignore

[Chun-wei Fan <fanchunwei src gnome org>]

commit 70ae29e00e730811e6282c332c7a55d23e1a3435
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Wed Oct 17 17:11:22 2018 +0800

    Update .gitignore
    
    We don't need to keep track of win32/config.h.win32

 .gitignore | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitignore b/.gitignore
index 73a8b4d..4125221 100644
--- a/.gitignore
+++ b/.gitignore
@@ -99,3 +99,4 @@ Makefile.in
 /tests/libpeas-gtk/plugin-manager-store
 /tests/libpeas-gtk/plugin-manager-view
 /xmldocs.make
+/win32/config.h.win32