[gnome-builder] build: add descriptions of options

[Christian Hergert <chergert src gnome org>]

commit 4e9e68e76bea7b2fb443460aff95b8480846cdf0
Author: Christian Hergert <chergert redhat com>
Date:   Thu Sep 21 15:27:47 2017 -0700

    build: add descriptions of options

 meson_options.txt |    9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)
---
diff --git a/meson_options.txt b/meson_options.txt
index 9e5d204..f44a49e 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,9 +1,6 @@
-# TODO: Add descriptions to all of these
-option('enable_tracing', type: 'boolean', value: false)
-option('enable_profiling', type: 'boolean', value: false)
-option('enable_rdtscp', type: 'boolean', value: false,
-  description: 'High performance counters'
-)
+option('enable_tracing', type: 'boolean', value: false, description: 'Enable tracing of internals for 
troubleshooting Builder')
+option('enable_profiling', type: 'boolean', value: false, description: 'Enable profiling of the Builder 
codebase')
+option('enable_rdtscp', type: 'boolean', value: false, description: 'High performance counters')
 
 option('with_channel',
           type: 'combo',