[glibmm/glibmm-2-56.nmake] Update .gitignore

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

commit 95b9ae637f3fc0aada2ebedac104b9e297794212
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Mon Oct 29 15:38:14 2018 +0800

    Update .gitignore
    
    The Visual Studio build files are now in MSVC_NMake, not MSVC_201x.

 .gitignore | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index f66dece3..9a319900 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,9 +39,9 @@ giommconfig.h
 /build/missing
 /build/test-driver
 
-# MSVC_Net20*/
-/MSVC_Net201?/giomm/giomm.rc
-/MSVC_Net201?/glibmm/glibmm.rc
+# MSVC_NMake/
+/MSVC_NMake/giomm/giomm.rc
+/MSVC_NMake/glibmm/glibmm.rc
 
 # docs/
 /docs/doc-install.pl