[geary/wip/christopherdavis/add-meson-buildir-to-gitignore] gitignore: add _build to .gitignore

[Christopher Davis <christopherdavis src gnome org>]

commit ea7b82872c14ea25be815b4312029bb0ac6b032c
Author: Christopher Davis <brainblasted disroot org>
Date:   Thu Feb 28 23:48:57 2019 -0500

    gitignore: add _build to .gitignore
    
    _build is the build directory commonly used by meson for
    GNOME Builder projects. To make things more friendly to
    those working with Builder we should add it to
    our .gitignore.

 .gitignore | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitignore b/.gitignore
index cf904a74..27fef9ab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 /Makefile
 /.stamp
 build/
+_build/
 debian/*.debhelper.log
 debian/*.substvars
 debian/.debhelper