[gnome-builder] build: bump meson requirement

[Christian Hergert <chergert src gnome org>]

commit 25ae858bcc5fa438ff1b72d141d6006d021a60d1
Author: Christian Hergert <chergert redhat com>
Date:   Tue Mar 5 14:40:44 2019 -0800

    build: bump meson requirement
    
    We effectively require this anyway.

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 6285ff208..d1fe5d682 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project('gnome-builder', 'c',
           license: 'GPL3+',
           version: '3.31.91',
-    meson_version: '>= 0.48.0',
+    meson_version: '>= 0.49.0',
   default_options: [ 'c_std=gnu11',
                      'cpp_std=c++11',
                      'warning_level=2',