[vala/0.38] gitignore: ignore macOS metadata files

[Rico Tzschichholz <ricotz src gnome org>]

commit d3f6a84ce51af3d5212e4d1812fcb8584e75e48a
Author: Dr. Michael Lauer <mickey vanille-media de>
Date:   Mon Feb 26 16:48:31 2018 +0100

    gitignore: ignore macOS metadata files

 .gitignore |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index b5d7950..1f8def7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,6 +30,7 @@ stamp-h1
 *.pc
 .tarball-version
 .version
+.DS_Store
 
 *.gcda
 *.gcno