[glibmm/glibmm-2-64] glib/glibmm/ustring.h: Fix building on Visual Studio 2015

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

commit ed96df5fa32ed543a51401cfc030939210055e14
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Mon Jun 15 18:24:38 2020 +0800

    glib/glibmm/ustring.h: Fix building on Visual Studio 2015
    
    Commit 8b8af81f accidentally changed the macro check from '_MSC_VER' to
    'MSC_VER', fix that, so that things build correctly on Visual Studio 2015

 glib/glibmm/ustring.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/glib/glibmm/ustring.h b/glib/glibmm/ustring.h
index c3e67209..6d7b736b 100644
--- a/glib/glibmm/ustring.h
+++ b/glib/glibmm/ustring.h
@@ -30,7 +30,7 @@
 #endif
 
 /* work around linker error on Visual Studio if we don't have GLIBMM_HAVE_ALLOWS_STATIC_INLINE_NPOS */
-#if defined(MSC_VER) && MSC_VER >= 1600 && !defined(GLIBMM_HAVE_ALLOWS_STATIC_INLINE_NPOS)
+#if defined(_MSC_VER) && _MSC_VER >= 1600 && !defined(GLIBMM_HAVE_ALLOWS_STATIC_INLINE_NPOS)
 const std::basic_string<char>::size_type std::basic_string<char>::npos = 
(std::basic_string<char>::size_type) -1;
 #endif